These are full moon, half moon, and new moon days when devout Buddhists visit pagodas and observe the 8 or 10 precepts. In 1987, key Thngai Sil included:
For most of the year, it was 2530 B.E. (calculated by adding 543 years to the Gregorian year). Zodiac Animal: 1987 was the Year of the Rabbit ( Thoh ).
The weekday pattern for 1987 is identical to the current year 2026, meaning dates fall on the same days of the week. Major Religious and Cultural Festivals
In the traditional Khmer lunisolar calendar, the year 1987 CE was the year 2530–2531 B.E. (Buddhist Era). It was the Year of the Rabbit
The Khmer calendar is a lunisolar system , meaning it tracks both the moon's phases and the solar year to keep seasonal festivals aligned. Rabbit ( Thos ). Era: 2530 Buddhist Era (BE).