func (now *Now) BeginningOfHour() time.Time {
	y, m, d := now.Date()
	return time.Date(y, m, d, now.Time.Hour(), 0, 0, 0, now.Time.Location())
}
func (now *Now) BeginningOfHour() time.Time {
	y, m, d := now.Date()
	return time.Date(y, m, d, now.Time.Hour(), 0, 0, 0, now.Time.Location())
}
func ( now * Now ) BeginningOfHour ( ) time . Time { y , m , d := now . Date ( ) return time . Date ( y , m , d , now . Time . Hour ( ) , 0 , 0 , 0 , now . Time . Location ( ) ) }
// BeginningOfHour beginning of hour
BeginningOfHour beginning of hour