Are my date inputs uploaded?

No. The conversion runs in the browser and does not send dates to a server.

Does the Chinese lunar converter support leap months?

Yes. When a lunar year has a leap month, the month selector lists it separately immediately after the normal month with the same number.

What date range does Chinese lunar conversion support?

Gregorian-to-Chinese-lunar conversion supports 1901-01-01 through 2100-12-31. Lunar inputs must convert into that same Gregorian range. Results are calendar references, not determinations of modern PRC statutory holidays.

Is the Hijri result an official religious date?

No. The tool uses the civil/tabular Islamic calendar for deterministic conversion. Local official announcements can differ by about one day.

How is the Buddhist Era year calculated?

Thai Buddhist Era years are calculated by adding 543 to the Gregorian year.

Calendar Converter - Gregorian, Lunar, Hijri & Buddhist

Convert Gregorian, Chinese lunar, Buddhist Era, and civil Hijri dates locally in your browser.

Convert dates across calendar systems

Use this calendar converter to compare a Gregorian date with a traditional Chinese lunar date, Thai Buddhist Era year, or civil Hijri date. It handles real Chinese leap months, runs locally, and is designed for date reference, travel planning, documentation checks, and quick calendar lookups.

How the methods work

Chinese lunar conversion uses the traditional lunisolar calendar and distinguishes a leap month from the normal month with the same number. Its supported Gregorian range is 1901-01-01 through 2100-12-31. Buddhist Era conversion is fixed year arithmetic. Hijri conversion uses the civil/tabular Islamic calendar, so official Ramadan and Eid dates can still differ by country because local authorities may use moon-sighting announcements.

Related date pages

Islamic calendar dates 2026 Buddhist calendar 2026 Catholic dates 2026

Calendar Converter FAQ

Are my date inputs uploaded?: No. The conversion runs in the browser and does not send dates to a server.
Does the Chinese lunar converter support leap months?: Yes. When a lunar year has a leap month, the month selector lists it separately immediately after the normal month with the same number.
What date range does Chinese lunar conversion support?: Gregorian-to-Chinese-lunar conversion supports 1901-01-01 through 2100-12-31. Lunar inputs must convert into that same Gregorian range. Results are calendar references, not determinations of modern PRC statutory holidays.
Is the Hijri result an official religious date?: No. The tool uses the civil/tabular Islamic calendar for deterministic conversion. Local official announcements can differ by about one day.
How is the Buddhist Era year calculated?: Thai Buddhist Era years are calculated by adding 543 to the Gregorian year.