MYANMAR people use the Lunar calendar. Months are counted according to the movement of the moon, so the month in Myanmar is ‘La’, the same word for the moon. There are two types of the month – 30- day month and 29-day month. The month which has 15 days of the waxing moon and 15 days of the waning moon is of the first type and the month which has 15 days of the waxing moon and 14 days of the waning moon is of the second type. These two types alternate in the 12-month calendar. The year always begins with the 29-day month called Tagu, and ends with the 30-day month called Tabaung. So it is customary for the Myanmar people to mark the day not only as the 1st day, 2nd day etc., of the month but also whether the day is waxing or waning moon of the month. The days of the month counted in this way have thus a serial of 1 to 15 for the first half of the month and 1 to 15 for the second half of the month of 30 days, and 1 to 15 for the first half of the month and 1 to 14 for the second half of the month of 29 days. The 15th day of the waxing moon is called Full Moon day, and the 15th (in the case of 30-day months) or 14th (in the case of 29-day months) day of the waning moon is called ‘Hidden Moon’ day.