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time.go
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time.go
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package nonota
import (
"time"
)
// StartOfBilling returns the time of the start of billing for a given time.
func StartOfBilling(t time.Time) time.Time {
return time.Date(t.Year(), t.Month(), 1, 0, 0, 0, 0, time.Local)
}
func EndOfBilling(t time.Time) time.Time {
return EndOfDay(time.Date(t.Year(), t.Month()+1, 0, 0, 0, 0, 0, time.Local))
}
func StartOfDay(t time.Time) time.Time {
return time.Date(t.Year(), t.Month(), t.Day(), 0, 0, 0, 0, time.Local)
}
func EndOfDay(t time.Time) time.Time {
return time.Date(t.Year(), t.Month(), t.Day(), 23, 59, 59, 0, time.Local)
}
func StartOfWeek(t time.Time) time.Time {
weekday := t.Weekday()
oneday, _ := time.ParseDuration("24h")
startDay := t.Add(oneday * time.Duration(weekday) * -1)
return StartOfDay(startDay)
}
func EndOfWeek(t time.Time) time.Time {
weekday := t.Weekday()
oneday, _ := time.ParseDuration("24h")
endDay := t.Add(oneday * (6 - time.Duration(weekday)))
return EndOfDay(endDay)
}