Both directions
Choose the calendar you have a date in, enter it, and read the same civil day in all the others. Every calendar here maps whole days to whole days; where a calendar's day begins at sunset (Hijri, Hebrew), the date shown is the one that covers the daytime.
Supported ranges: Gregorian 1900–2100; Hijri (Umm al-Qura) 1317–1524 AH; Chinese from 1901; Thai from 1941; Japanese from 1873; Bengali from 1394; Nepali 2000–2090 BS.