Dates.Time constructor and UNIX_EPOCH constant (#5)

* UNIX_EPOCH constant

* Time constructor

* Fix typo

* Update version and add unit test

Project.toml

@@ -1,7 +1,7 @@
 name = "UnixTimes"
 uuid = "ab1a18e7-b408-4913-896c-624bb82ed7f4"
 authors = ["Christian Rorvik <christian.rorvik@gmail.com>"]
-version = "1.0.0"
+version = "1.1.0"
 
 [deps]
 Dates = "ade2ca70-3891-5945-98fb-dc099432e06a"

src/UnixTimes.jl

@@ -5,6 +5,8 @@ using TimeZones
 
 export UnixTime
 export unix_now
+export UNIX_EPOCH
+
 
 struct UnixTime <: Dates.AbstractDateTime
     instant::Dates.UTInstant{Nanosecond}
@@ -23,6 +25,8 @@ function UnixTime(
     convert(UnixTime, DateTime(y, m, d, h, mi, s, ms)) + Nanosecond(us * 1000 + ns)
 end
 
+const UNIX_EPOCH = UnixTime(Dates.UTInstant(Nanosecond(0)))
+
 Dates.days(x::UnixTime) = Dates.days(convert(DateTime, x))
 Dates.hour(x::UnixTime) = mod(fld(Dates.value(x), 3600_000_000_000), 24)
 Dates.minute(x::UnixTime) = mod(fld(Dates.value(x), 60_000_000_000), 60)
@@ -47,6 +51,7 @@ function Dates.DateTime(x::UnixTime)
 end
 
 Dates.Date(x::UnixTime) = Date(DateTime(x))
+Dates.Time(x::UnixTime) = Time(Nanosecond(Dates.value(x)))
 
 Base.convert(::Type{DateTime}, x::UnixTime) = DateTime(x)
 

test/runtests.jl

@@ -82,6 +82,7 @@ end
     @test UnixTime(DateTime(2020, 1, 2, 3)) == UnixTime(2020, 1, 2, 3)
     @test DateTime(UnixTime(2020, 1, 2, 3)) == DateTime(2020, 1, 2, 3)
     @test Date(UnixTime(2020, 1, 2, 3)) == Date(2020, 1, 2)
+    @test Time(UnixTime(2020, 1, 2, 3, 4, 5, 6, 7, 8)) == Time(3, 4, 5, 6, 7, 8)
     @test UnixTime(Date(2020, 1, 2)) == UnixTime(2020, 1, 2)
     @test convert(UnixTime, DateTime(2020, 1, 2, 3)) == UnixTime(2020, 1, 2, 3)
     @test convert(DateTime, UnixTime(2020, 1, 2, 3)) == DateTime(2020, 1, 2, 3)