diff --git a/build.gradle.kts b/build.gradle.kts
index 7c7bcd0..a535200 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -18,7 +18,6 @@ repositories {
 }
 
 dependencies {
-
     implementation("org.jetbrains.kotlin:kotlin-stdlib:$kotlinVersion")
     testImplementation("org.junit.jupiter:junit-jupiter-api:$junitVersion")
     testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:$junitVersion")
diff --git a/src/main/kotlin/localdate/LocalDateUtil.kt b/src/main/kotlin/javatimefun/localdate/LocalDateUtil.kt
similarity index 79%
rename from src/main/kotlin/localdate/LocalDateUtil.kt
rename to src/main/kotlin/javatimefun/localdate/LocalDateUtil.kt
index 796806e..9358909 100644
--- a/src/main/kotlin/localdate/LocalDateUtil.kt
+++ b/src/main/kotlin/javatimefun/localdate/LocalDateUtil.kt
@@ -1,4 +1,4 @@
-package localdate
+package javatimefun.localdate
 
 import java.time.LocalDate
 import java.time.Month
@@ -29,11 +29,13 @@ object LocalDateUtil {
      * @param date  A wrapper of Epoch time in UTC.
      * @return  LocalDate.
      */
-    fun new(date: Date): LocalDate = new(date.toInstant().toEpochMilli())
+    fun new(date: Date): LocalDate =
+        javatimefun.localdate.LocalDateUtil.new(date.toInstant().toEpochMilli())
 
     /**
      * @param calendar  Calendar, a date time variable that supports time zones.
      * @return  LocalDate.
      */
-    fun new(calendar: Calendar): LocalDate = new(calendar.toInstant().toEpochMilli())
+    fun new(calendar: Calendar): LocalDate =
+        javatimefun.localdate.LocalDateUtil.new(calendar.toInstant().toEpochMilli())
 }
\ No newline at end of file
diff --git a/src/main/kotlin/javatimefun/localdate/LocalDates.kt b/src/main/kotlin/javatimefun/localdate/LocalDates.kt
new file mode 100644
index 0000000..7f2d11c
--- /dev/null
+++ b/src/main/kotlin/javatimefun/localdate/LocalDates.kt
@@ -0,0 +1,39 @@
+package javatimefun.localdate
+
+import javatimefun.localdate.extensions.getLast
+import javatimefun.localdate.extensions.getNext
+import java.time.DayOfWeek
+import java.time.LocalDate
+
+object LocalDates {
+    val today: LocalDate get() = LocalDate.now()
+    val yesterday: LocalDate get() = javatimefun.localdate.LocalDates.today.minusDays(1)
+    val tomorrow: LocalDate get() = javatimefun.localdate.LocalDates.today.plusDays(1)
+
+    val lastMonday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.MONDAY)
+    val lastTuesday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.TUESDAY)
+    val lastWednesday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.WEDNESDAY)
+    val lastThursday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.THURSDAY)
+    val lastFriday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.FRIDAY)
+    val lastSaturday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.SATURDAY)
+    val lastSunday: LocalDate get() = javatimefun.localdate.LocalDates.today.getLast(DayOfWeek.SUNDAY)
+
+    val nextMonday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.MONDAY)
+    val nextTuesday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.TUESDAY)
+    val nextWednesday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.WEDNESDAY)
+    val nextThursday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.THURSDAY)
+    val nextFriday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.FRIDAY)
+    val nextSaturday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.SATURDAY)
+    val nextSunday: LocalDate get() = javatimefun.localdate.LocalDates.today.getNext(DayOfWeek.SUNDAY)
+
+    val firstDayOfThisYear: LocalDate get() = javatimefun.localdate.LocalDateUtil.new(
+        javatimefun.localdate.LocalDates.today.year,
+        1,
+        1
+    )
+    val lastDayOfThisYear: LocalDate get() = javatimefun.localdate.LocalDateUtil.new(
+        javatimefun.localdate.LocalDates.today.year,
+        12,
+        31
+    )
+}
\ No newline at end of file
diff --git a/src/main/kotlin/localdate/extensions/LocalDateAttributeExtensions.kt b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateAttributeExtensions.kt
similarity index 85%
rename from src/main/kotlin/localdate/extensions/LocalDateAttributeExtensions.kt
rename to src/main/kotlin/javatimefun/localdate/extensions/LocalDateAttributeExtensions.kt
index ad95e65..c849bab 100644
--- a/src/main/kotlin/localdate/extensions/LocalDateAttributeExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateAttributeExtensions.kt
@@ -1,4 +1,4 @@
-package localdate.extensions
+package javatimefun.localdate.extensions
 
 import java.time.LocalDate
 import java.time.Year
diff --git a/src/main/kotlin/localdate/extensions/LocalDateComparisonExtensions.kt b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateComparisonExtensions.kt
similarity index 98%
rename from src/main/kotlin/localdate/extensions/LocalDateComparisonExtensions.kt
rename to src/main/kotlin/javatimefun/localdate/extensions/LocalDateComparisonExtensions.kt
index 0e63b97..7f1e544 100644
--- a/src/main/kotlin/localdate/extensions/LocalDateComparisonExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateComparisonExtensions.kt
@@ -1,4 +1,4 @@
-package localdate.extensions
+package javatimefun.localdate.extensions
 
 import java.time.Duration
 import java.time.LocalDate
diff --git a/src/main/kotlin/localdate/extensions/LocalDateMutatingExtensions.kt b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateMutatingExtensions.kt
similarity index 90%
rename from src/main/kotlin/localdate/extensions/LocalDateMutatingExtensions.kt
rename to src/main/kotlin/javatimefun/localdate/extensions/LocalDateMutatingExtensions.kt
index 01e67d2..9577b51 100644
--- a/src/main/kotlin/localdate/extensions/LocalDateMutatingExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateMutatingExtensions.kt
@@ -1,4 +1,4 @@
-package localdate.extensions
+package javatimefun.localdate.extensions
 
 import java.time.DayOfWeek
 import java.time.LocalDate
@@ -33,6 +33,4 @@ fun LocalDate.getNext(dayOfWeek: DayOfWeek, countingInThisDay: Boolean = false):
     return nextLocalDate
 }
 
-fun LocalDate.startOfDay(): LocalDateTime = LocalDateTime.of(this, LocalTime.MIN)
-
 fun LocalDate.atEndOfDay(): LocalDateTime = LocalDateTime.of(this, LocalTime.MAX)
diff --git a/src/main/kotlin/localdate/extensions/LocalDateParsingExtensions.kt b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateParsingExtensions.kt
similarity index 93%
rename from src/main/kotlin/localdate/extensions/LocalDateParsingExtensions.kt
rename to src/main/kotlin/javatimefun/localdate/extensions/LocalDateParsingExtensions.kt
index dbc678e..64a86ef 100644
--- a/src/main/kotlin/localdate/extensions/LocalDateParsingExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdate/extensions/LocalDateParsingExtensions.kt
@@ -1,4 +1,4 @@
-package localdate.extensions
+package javatimefun.localdate.extensions
 
 import java.time.LocalDate
 import java.time.format.DateTimeFormatter
@@ -13,7 +13,7 @@ import java.time.format.DateTimeParseException
  * @return  LocalDate? Null means couldn't parse, else parsed LocalDate.
  */
 fun String.parseLocalDate(format: String? = null): LocalDate? =
-    if (format == null || format.isEmpty()) {
+    if (format.isNullOrEmpty()) {
         try {
             LocalDate.parse(this)
         } catch (e: DateTimeParseException) {
diff --git a/src/main/kotlin/localdate/extensions/LocalDatePrintExtensions.kt b/src/main/kotlin/javatimefun/localdate/extensions/LocalDatePrintExtensions.kt
similarity index 86%
rename from src/main/kotlin/localdate/extensions/LocalDatePrintExtensions.kt
rename to src/main/kotlin/javatimefun/localdate/extensions/LocalDatePrintExtensions.kt
index cd75a09..c06f40c 100644
--- a/src/main/kotlin/localdate/extensions/LocalDatePrintExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdate/extensions/LocalDatePrintExtensions.kt
@@ -1,4 +1,4 @@
-package localdate.extensions
+package javatimefun.localdate.extensions
 
 import java.time.LocalDate
 import java.time.format.DateTimeFormatterBuilder
diff --git a/src/main/kotlin/localdatetime/LocalDateTimeUtil.kt b/src/main/kotlin/javatimefun/localdatetime/LocalDateTimeUtil.kt
similarity index 98%
rename from src/main/kotlin/localdatetime/LocalDateTimeUtil.kt
rename to src/main/kotlin/javatimefun/localdatetime/LocalDateTimeUtil.kt
index 5e37ac4..d8d982a 100644
--- a/src/main/kotlin/localdatetime/LocalDateTimeUtil.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/LocalDateTimeUtil.kt
@@ -1,4 +1,4 @@
-package localdatetime
+package javatimefun.localdatetime
 
 import java.time.LocalDateTime
 import java.time.Month
diff --git a/src/main/kotlin/localdatetime/LocalDateTimes.kt b/src/main/kotlin/javatimefun/localdatetime/LocalDateTimes.kt
similarity index 88%
rename from src/main/kotlin/localdatetime/LocalDateTimes.kt
rename to src/main/kotlin/javatimefun/localdatetime/LocalDateTimes.kt
index 40e76da..e20718f 100644
--- a/src/main/kotlin/localdatetime/LocalDateTimes.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/LocalDateTimes.kt
@@ -1,8 +1,8 @@
-package localdatetime
+package javatimefun.localdatetime
 
-import localdatetime.extensions.atStartOfDay
-import localdatetime.extensions.getLast
-import localdatetime.extensions.getNext
+import javatimefun.localdatetime.extensions.atStartOfDay
+import javatimefun.localdatetime.extensions.getLast
+import javatimefun.localdatetime.extensions.getNext
 import java.time.DayOfWeek
 import java.time.LocalDateTime
 
diff --git a/src/main/kotlin/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt
similarity index 90%
rename from src/main/kotlin/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt
rename to src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt
index 2516527..459342c 100644
--- a/src/main/kotlin/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeAttributeExtensions.kt
@@ -1,4 +1,4 @@
-package localdatetime.extensions
+package javatimefun.localdatetime.extensions
 
 import java.time.LocalDateTime
 import java.time.Year
diff --git a/src/main/kotlin/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt
similarity index 98%
rename from src/main/kotlin/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt
rename to src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt
index 9798bb1..777dcdc 100644
--- a/src/main/kotlin/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeComparisonExtensions.kt
@@ -1,4 +1,4 @@
-package localdatetime.extensions
+package javatimefun.localdatetime.extensions
 
 import java.time.Duration
 import java.time.LocalDateTime
diff --git a/src/main/kotlin/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt
similarity index 97%
rename from src/main/kotlin/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt
rename to src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt
index 1dd6e43..62efe60 100644
--- a/src/main/kotlin/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeMutatingExtensions.kt
@@ -1,4 +1,4 @@
-package localdatetime.extensions
+package javatimefun.localdatetime.extensions
 
 import java.time.DayOfWeek
 import java.time.LocalDateTime
diff --git a/src/main/kotlin/localdatetime/extensions/LocalDateTimeParsingExtensions.kt b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeParsingExtensions.kt
similarity index 92%
rename from src/main/kotlin/localdatetime/extensions/LocalDateTimeParsingExtensions.kt
rename to src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeParsingExtensions.kt
index 2b8e84c..75d9337 100644
--- a/src/main/kotlin/localdatetime/extensions/LocalDateTimeParsingExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimeParsingExtensions.kt
@@ -1,6 +1,6 @@
-package localdatetime.extensions
+package javatimefun.localdatetime.extensions
 
-import localdate.extensions.parseLocalDate
+import javatimefun.localdate.extensions.parseLocalDate
 import java.time.LocalDateTime
 import java.time.LocalTime
 import java.time.format.DateTimeFormatter
@@ -32,7 +32,7 @@ fun String.parseLocalDateTime(format: String? = null): LocalDateTime? {
 }
 
 private fun parseLocalDateTimeHelper(dateText: String, format: String?): LocalDateTime? =
-    if (format == null || format.isEmpty())
+    if (format.isNullOrEmpty())
         try {
             LocalDateTime.parse(dateText)
         } catch (e: DateTimeParseException) {
diff --git a/src/main/kotlin/localdatetime/extensions/LocalDateTimePrintExtensions.kt b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimePrintExtensions.kt
similarity index 85%
rename from src/main/kotlin/localdatetime/extensions/LocalDateTimePrintExtensions.kt
rename to src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimePrintExtensions.kt
index 738f7e1..7ec81b8 100644
--- a/src/main/kotlin/localdatetime/extensions/LocalDateTimePrintExtensions.kt
+++ b/src/main/kotlin/javatimefun/localdatetime/extensions/LocalDateTimePrintExtensions.kt
@@ -1,4 +1,4 @@
-package localdatetime.extensions
+package javatimefun.localdatetime.extensions
 
 import java.time.LocalDateTime
 import java.time.format.DateTimeFormatterBuilder
diff --git a/src/main/kotlin/localtime/LocalTimeUtil.kt b/src/main/kotlin/javatimefun/localtime/LocalTimeUtil.kt
similarity index 96%
rename from src/main/kotlin/localtime/LocalTimeUtil.kt
rename to src/main/kotlin/javatimefun/localtime/LocalTimeUtil.kt
index 1c8e513..d3b3455 100644
--- a/src/main/kotlin/localtime/LocalTimeUtil.kt
+++ b/src/main/kotlin/javatimefun/localtime/LocalTimeUtil.kt
@@ -1,6 +1,6 @@
-package localtime
+package javatimefun.localtime
 
-import localdatetime.LocalDateTimeUtil
+import javatimefun.localdatetime.LocalDateTimeUtil
 import java.time.LocalTime
 import java.util.Date
 import java.util.Calendar
diff --git a/src/main/kotlin/localtime/LocalTimes.kt b/src/main/kotlin/javatimefun/localtime/LocalTimes.kt
similarity index 85%
rename from src/main/kotlin/localtime/LocalTimes.kt
rename to src/main/kotlin/javatimefun/localtime/LocalTimes.kt
index 4694ea4..1dd8307 100644
--- a/src/main/kotlin/localtime/LocalTimes.kt
+++ b/src/main/kotlin/javatimefun/localtime/LocalTimes.kt
@@ -1,4 +1,4 @@
-package localtime
+package javatimefun.localtime
 
 import java.time.LocalTime
 
diff --git a/src/main/kotlin/localtime/extensions/LocalTimeAttributeExtensions.kt b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeAttributeExtensions.kt
similarity index 87%
rename from src/main/kotlin/localtime/extensions/LocalTimeAttributeExtensions.kt
rename to src/main/kotlin/javatimefun/localtime/extensions/LocalTimeAttributeExtensions.kt
index d04223f..1c17736 100644
--- a/src/main/kotlin/localtime/extensions/LocalTimeAttributeExtensions.kt
+++ b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeAttributeExtensions.kt
@@ -1,4 +1,4 @@
-package localtime.extensions
+package javatimefun.localtime.extensions
 
 import java.time.LocalTime
 
diff --git a/src/main/kotlin/localtime/extensions/LocalTimeComparisonExtensions.kt b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeComparisonExtensions.kt
similarity index 95%
rename from src/main/kotlin/localtime/extensions/LocalTimeComparisonExtensions.kt
rename to src/main/kotlin/javatimefun/localtime/extensions/LocalTimeComparisonExtensions.kt
index 2d7efe2..bb182ad 100644
--- a/src/main/kotlin/localtime/extensions/LocalTimeComparisonExtensions.kt
+++ b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeComparisonExtensions.kt
@@ -1,4 +1,4 @@
-package localtime.extensions
+package javatimefun.localtime.extensions
 
 import java.time.Duration
 import java.time.LocalTime
diff --git a/src/main/kotlin/localtime/extensions/LocalTimeParsingExtensions.kt b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeParsingExtensions.kt
similarity index 89%
rename from src/main/kotlin/localtime/extensions/LocalTimeParsingExtensions.kt
rename to src/main/kotlin/javatimefun/localtime/extensions/LocalTimeParsingExtensions.kt
index 4a95bea..6f731f8 100644
--- a/src/main/kotlin/localtime/extensions/LocalTimeParsingExtensions.kt
+++ b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimeParsingExtensions.kt
@@ -1,11 +1,11 @@
-package localtime.extensions
+package javatimefun.localtime.extensions
 
 import java.time.LocalTime
 import java.time.format.DateTimeFormatter
 import java.time.format.DateTimeParseException
 
 fun String.parseLocalTime(format: String? = null): LocalTime? =
-    if (format == null || format.isEmpty()) {
+    if (format.isNullOrEmpty()) {
         try {
             LocalTime.parse(this)
         } catch (e: DateTimeParseException) {
diff --git a/src/main/kotlin/localtime/extensions/LocalTimePrintExtensions.kt b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimePrintExtensions.kt
similarity index 86%
rename from src/main/kotlin/localtime/extensions/LocalTimePrintExtensions.kt
rename to src/main/kotlin/javatimefun/localtime/extensions/LocalTimePrintExtensions.kt
index ce71de9..9b7c8f0 100644
--- a/src/main/kotlin/localtime/extensions/LocalTimePrintExtensions.kt
+++ b/src/main/kotlin/javatimefun/localtime/extensions/LocalTimePrintExtensions.kt
@@ -1,4 +1,4 @@
-package localtime.extensions
+package javatimefun.localtime.extensions
 
 import java.time.LocalTime
 import java.time.format.DateTimeFormatterBuilder
diff --git a/src/main/kotlin/zoneddatetime/ZonedDateTimeUtil.kt b/src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimeUtil.kt
similarity index 99%
rename from src/main/kotlin/zoneddatetime/ZonedDateTimeUtil.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimeUtil.kt
index f200649..8a1775c 100644
--- a/src/main/kotlin/zoneddatetime/ZonedDateTimeUtil.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimeUtil.kt
@@ -1,4 +1,4 @@
-package zoneddatetime
+package javatimefun.zoneddatetime
 
 import java.time.Instant
 import java.time.LocalDateTime
diff --git a/src/main/kotlin/zoneddatetime/ZonedDateTimes.kt b/src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimes.kt
similarity index 89%
rename from src/main/kotlin/zoneddatetime/ZonedDateTimes.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimes.kt
index c8ec584..722d5f5 100644
--- a/src/main/kotlin/zoneddatetime/ZonedDateTimes.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/ZonedDateTimes.kt
@@ -1,8 +1,8 @@
-package zoneddatetime
+package javatimefun.zoneddatetime
 
-import zoneddatetime.extensions.atStartOfDay
-import zoneddatetime.extensions.getLast
-import zoneddatetime.extensions.getNext
+import javatimefun.zoneddatetime.extensions.atStartOfDay
+import javatimefun.zoneddatetime.extensions.getLast
+import javatimefun.zoneddatetime.extensions.getNext
 import java.time.DayOfWeek.FRIDAY
 import java.time.DayOfWeek.MONDAY
 import java.time.DayOfWeek.SATURDAY
diff --git a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt
similarity index 95%
rename from src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt
index 4be6a61..273b57a 100644
--- a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeAttributeExtensions.kt
@@ -1,4 +1,4 @@
-package zoneddatetime.extensions
+package javatimefun.zoneddatetime.extensions
 
 import java.time.Year
 import java.time.ZonedDateTime
diff --git a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt
similarity index 99%
rename from src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt
index 593d1b5..c6d46aa 100644
--- a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeComparisonExtensions.kt
@@ -1,4 +1,4 @@
-package zoneddatetime.extensions
+package javatimefun.zoneddatetime.extensions
 
 import java.time.Duration
 import java.time.ZonedDateTime
diff --git a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt
similarity index 98%
rename from src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt
index ef8c9c5..68bc870 100644
--- a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeMutatingExtensions.kt
@@ -1,4 +1,4 @@
-package zoneddatetime.extensions
+package javatimefun.zoneddatetime.extensions
 
 import java.time.DayOfWeek
 import java.time.LocalTime
diff --git a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt
similarity index 93%
rename from src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt
index 310edb9..d7a08d8 100644
--- a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimeParsingExtensions.kt
@@ -1,7 +1,7 @@
-package zoneddatetime.extensions
+package javatimefun.zoneddatetime.extensions
 
-import localdatetime.extensions.parseLocalDateTime
-import zoneddatetime.ZonedDateTimeUtil
+import javatimefun.localdatetime.extensions.parseLocalDateTime
+import javatimefun.zoneddatetime.ZonedDateTimeUtil
 import java.time.ZoneId
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatter
@@ -42,7 +42,7 @@ fun String.parseZonedDateTime(
 }
 
 private fun parseZonedDateTimeHelper(dateText: String, format: String?): ZonedDateTime? =
-    if (format == null || format.isEmpty()) {
+    if (format.isNullOrEmpty()) {
         try {
             if (dateText.isMsftDate()) {
                 dateText.parseMsftDate()
diff --git a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt
similarity index 85%
rename from src/main/kotlin/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt
rename to src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt
index 5d2967a..15c04da 100644
--- a/src/main/kotlin/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt
+++ b/src/main/kotlin/javatimefun/zoneddatetime/extensions/ZonedDateTimePrintExtensions.kt
@@ -1,4 +1,4 @@
-package zoneddatetime.extensions
+package javatimefun.zoneddatetime.extensions
 
 import java.time.ZonedDateTime
 import java.time.format.DateTimeFormatterBuilder
diff --git a/src/main/kotlin/localdate/LocalDates.kt b/src/main/kotlin/localdate/LocalDates.kt
deleted file mode 100644
index 3970668..0000000
--- a/src/main/kotlin/localdate/LocalDates.kt
+++ /dev/null
@@ -1,31 +0,0 @@
-package localdate
-
-import localdate.extensions.getLast
-import localdate.extensions.getNext
-import java.time.DayOfWeek
-import java.time.LocalDate
-
-object LocalDates {
-    val today: LocalDate get() = LocalDate.now()
-    val yesterday: LocalDate get() = today.minusDays(1)
-    val tomorrow: LocalDate get() = today.plusDays(1)
-
-    val lastMonday: LocalDate get() = today.getLast(DayOfWeek.MONDAY)
-    val lastTuesday: LocalDate get() = today.getLast(DayOfWeek.TUESDAY)
-    val lastWednesday: LocalDate get() = today.getLast(DayOfWeek.WEDNESDAY)
-    val lastThursday: LocalDate get() = today.getLast(DayOfWeek.THURSDAY)
-    val lastFriday: LocalDate get() = today.getLast(DayOfWeek.FRIDAY)
-    val lastSaturday: LocalDate get() = today.getLast(DayOfWeek.SATURDAY)
-    val lastSunday: LocalDate get() = today.getLast(DayOfWeek.SUNDAY)
-
-    val nextMonday: LocalDate get() = today.getNext(DayOfWeek.MONDAY)
-    val nextTuesday: LocalDate get() = today.getNext(DayOfWeek.TUESDAY)
-    val nextWednesday: LocalDate get() = today.getNext(DayOfWeek.WEDNESDAY)
-    val nextThursday: LocalDate get() = today.getNext(DayOfWeek.THURSDAY)
-    val nextFriday: LocalDate get() = today.getNext(DayOfWeek.FRIDAY)
-    val nextSaturday: LocalDate get() = today.getNext(DayOfWeek.SATURDAY)
-    val nextSunday: LocalDate get() = today.getNext(DayOfWeek.SUNDAY)
-
-    val firstDayOfThisYear: LocalDate get() = LocalDateUtil.new(today.year, 1, 1)
-    val lastDayOfThisYear: LocalDate get() = LocalDateUtil.new(today.year, 12, 31)
-}
\ No newline at end of file
diff --git a/src/test/kotlin/localdate/LocalDateUtilTest.kt b/src/test/kotlin/localdate/LocalDateUtilTest.kt
index eba4ec6..3750ff1 100644
--- a/src/test/kotlin/localdate/LocalDateUtilTest.kt
+++ b/src/test/kotlin/localdate/LocalDateUtilTest.kt
@@ -1,6 +1,6 @@
 package localdate
 
-import localdate.extensions.getMonthBaseZero
+import javatimefun.localdate.extensions.getMonthBaseZero
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import java.util.Date
@@ -16,7 +16,7 @@ class LocalDateUtilTest {
         val epoch = 1325134800000
 
         // when
-        val localDate = LocalDateUtil.new(epoch)
+        val localDate = javatimefun.localdate.LocalDateUtil.new(epoch)
 
         // then
         assertEquals(2011, localDate.year)
@@ -31,7 +31,7 @@ class LocalDateUtilTest {
 
         // when
         val date = Date(epoch)
-        val localDate = LocalDateUtil.new(date)
+        val localDate = javatimefun.localdate.LocalDateUtil.new(date)
 
         // then
         assertEquals(2011, localDate.year)
@@ -50,7 +50,7 @@ class LocalDateUtilTest {
             timeZone = TimeZone.getTimeZone("UTC")
             time = date
         }
-        val localDate = LocalDateUtil.new(calendar)
+        val localDate = javatimefun.localdate.LocalDateUtil.new(calendar)
 
         // then
         assertEquals(calendar[Calendar.YEAR], localDate.year)
diff --git a/src/test/kotlin/localdatetime/LocalDateTimeUtilTest.kt b/src/test/kotlin/localdatetime/LocalDateTimeUtilTest.kt
index cc57301..4a4afed 100644
--- a/src/test/kotlin/localdatetime/LocalDateTimeUtilTest.kt
+++ b/src/test/kotlin/localdatetime/LocalDateTimeUtilTest.kt
@@ -1,6 +1,7 @@
 package localdatetime
 
-import localdatetime.extensions.getMonthBaseZero
+import javatimefun.localdatetime.LocalDateTimeUtil
+import javatimefun.localdatetime.extensions.getMonthBaseZero
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import java.util.Calendar
diff --git a/src/test/kotlin/localtime/LocalTimeUtilTest.kt b/src/test/kotlin/localtime/LocalTimeUtilTest.kt
index 84bfbe2..3ba92ca 100644
--- a/src/test/kotlin/localtime/LocalTimeUtilTest.kt
+++ b/src/test/kotlin/localtime/LocalTimeUtilTest.kt
@@ -1,5 +1,6 @@
 package localtime
 
+import javatimefun.localtime.LocalTimeUtil
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
 import java.util.Date
diff --git a/src/test/kotlin/zoneddatetime/ZonedDateTimeAttributeExtensionsTest.kt b/src/test/kotlin/zoneddatetime/ZonedDateTimeAttributeExtensionsTest.kt
index 52b1471..29f2d96 100644
--- a/src/test/kotlin/zoneddatetime/ZonedDateTimeAttributeExtensionsTest.kt
+++ b/src/test/kotlin/zoneddatetime/ZonedDateTimeAttributeExtensionsTest.kt
@@ -1,10 +1,11 @@
 package zoneddatetime
 
+import javatimefun.zoneddatetime.ZonedDateTimeUtil
 import org.junit.jupiter.api.Assertions
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Test
-import zoneddatetime.extensions.*
+import javatimefun.zoneddatetime.extensions.*
 
 class ZonedDateTimeAttributeExtensionsTest {
 
diff --git a/src/test/kotlin/zoneddatetime/ZonedDateTimeComparisonExtensionsTest.kt b/src/test/kotlin/zoneddatetime/ZonedDateTimeComparisonExtensionsTest.kt
index df7fe80..d73d112 100644
--- a/src/test/kotlin/zoneddatetime/ZonedDateTimeComparisonExtensionsTest.kt
+++ b/src/test/kotlin/zoneddatetime/ZonedDateTimeComparisonExtensionsTest.kt
@@ -1,10 +1,11 @@
 package zoneddatetime
 
+import javatimefun.zoneddatetime.ZonedDateTimeUtil
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Assertions.assertFalse
 import org.junit.jupiter.api.Test
-import zoneddatetime.extensions.*
+import javatimefun.zoneddatetime.extensions.*
 
 class ZonedDateTimeComparisonExtensionsTest {
 
diff --git a/src/test/kotlin/zoneddatetime/ZonedDateTimeMutatingExtensionsTest.kt b/src/test/kotlin/zoneddatetime/ZonedDateTimeMutatingExtensionsTest.kt
index 7c77a46..b6203fa 100644
--- a/src/test/kotlin/zoneddatetime/ZonedDateTimeMutatingExtensionsTest.kt
+++ b/src/test/kotlin/zoneddatetime/ZonedDateTimeMutatingExtensionsTest.kt
@@ -1,14 +1,15 @@
 package zoneddatetime
 
-import localtime.extensions.parseLocalTime
-import localtime.extensions.print
+import javatimefun.localtime.extensions.parseLocalTime
+import javatimefun.localtime.extensions.print
+import javatimefun.zoneddatetime.ZonedDateTimeUtil
 import org.junit.jupiter.api.Assertions
 import org.junit.jupiter.api.Assertions.assertTrue
 import org.junit.jupiter.api.Test
-import zoneddatetime.extensions.getLast
-import zoneddatetime.extensions.getNext
-import zoneddatetime.extensions.isEqualDay
-import zoneddatetime.extensions.withLocalTime
+import javatimefun.zoneddatetime.extensions.getLast
+import javatimefun.zoneddatetime.extensions.getNext
+import javatimefun.zoneddatetime.extensions.isEqualDay
+import javatimefun.zoneddatetime.extensions.withLocalTime
 import java.time.DayOfWeek
 import java.time.LocalTime
 
diff --git a/src/test/kotlin/zoneddatetime/ZonedDateTimeParsingExtensionsTest.kt b/src/test/kotlin/zoneddatetime/ZonedDateTimeParsingExtensionsTest.kt
index f14a605..3382f90 100644
--- a/src/test/kotlin/zoneddatetime/ZonedDateTimeParsingExtensionsTest.kt
+++ b/src/test/kotlin/zoneddatetime/ZonedDateTimeParsingExtensionsTest.kt
@@ -2,8 +2,8 @@ package zoneddatetime
 
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
-import zoneddatetime.extensions.parseZonedDateTime
-import zoneddatetime.extensions.print
+import javatimefun.zoneddatetime.extensions.parseZonedDateTime
+import javatimefun.zoneddatetime.extensions.print
 import java.lang.RuntimeException
 import java.time.ZonedDateTime
 
diff --git a/src/test/kotlin/zoneddatetime/ZonedDateTimeUtilTest.kt b/src/test/kotlin/zoneddatetime/ZonedDateTimeUtilTest.kt
index ff7cb00..fde2e36 100644
--- a/src/test/kotlin/zoneddatetime/ZonedDateTimeUtilTest.kt
+++ b/src/test/kotlin/zoneddatetime/ZonedDateTimeUtilTest.kt
@@ -1,8 +1,9 @@
 package zoneddatetime
 
+import javatimefun.zoneddatetime.ZonedDateTimeUtil
 import org.junit.jupiter.api.Assertions.assertEquals
 import org.junit.jupiter.api.Test
-import zoneddatetime.extensions.getMonthBaseZero
+import javatimefun.zoneddatetime.extensions.getMonthBaseZero
 import java.time.ZonedDateTime
 import java.util.Calendar
 import java.util.Calendar.HOUR