for normal working hours on holidays (1 time) per hour for before/after normal working hours ( 1.5 time ) for before/after working hour on holiday ( 3 time )
for hours working normal on holidays ใช้ไม่ได้จะ hour for before / after hours working เลือกใช้ 1.5 ยัง ) for before / after hour working on holiday ( 3 ยัง )