clock

type Interface interface {
	GetCurrentTime() time.Time
	SubstractTime(origin, deductor time.Time) time.Duration
	AddTime(origin time.Time, adder time.Duration) time.Time
	GetTimeInLocation(locationParam Location, timeParam time.Time) (time.Time, error)
	GetFirstDayOfTheMonth(year int, month time.Month) time.Time
	GetLastDayOfTheMonth(year int, month time.Month) time.Time
	ConvertFromString(timeFormat, timeString string) (time.Time, error)
	ConvertToString(timeFormat string, timeParam time.Time) string
}

type Location string