Set globally default

Default timezone is UTC, language locale is English, start day of the week is Monday and weekend days of the week are Saturday and Sunday.

Set single default value

go

carbon.SetLayout(carbon.DateTimeLayout)
carbon.SetTimezone(carbon.UTC)
carbon.SetLocale("en")
carbon.SetWeekStartsAt(carbon.Monday)
carbon.SetWeekendDays([]carbon.Weekday{carbon.Saturday, carbon.Sunday,})

Set multiple default value

go

carbon.SetDefault(carbon.Default{
  Layout: carbon.DateTimeLayout,
  Timezone: carbon.UTC,
  Locale: "en",
  WeekStartsAt: carbon.Monday,
  WeekendDays: []carbon.Weekday{carbon.Saturday, carbon.Sunday,},
})

Resetting default value

go

carbon.ResetDefault()

This is particularly useful in testing to ensure that changes in one test don't affect others.