now.go
func (now *Now) EndOfHour() time.Time {
	return now.BeginningOfHour().Add(time.Hour - time.Nanosecond)
}
func (now *Now) EndOfHour() time.Time {
	return now.BeginningOfHour().Add(time.Hour - time.Nanosecond)
}
// EndOfHour end of hour