Thai Solar

About the Thai solar calendar

The Thai solar calendar, Suriyakhati was adopted by King Chulalongkorn (Rama V) in AD 1888 as the Siamese version of the Gregorian calendar. It is the legal calendar in Thailand, though Thai lunar calendar dates continue in use. Years are now counted in the Buddhist Era that is 543 years greater than the Christian Era. As a convenience, calendars typically include the year AD in both Arabic and Chinese numerals.


Below is the Thai Solar calendar. When you select a date, you will see the converted date. You can also type in a date in the fields and the Thai Solar date will appear in the calendar.

Selected date (DD-MM-YYYY):