Where the dates come from

bikram-sambat-react has no calendar table of its own. Month lengths, the weekday each month starts on, moving between months and years, and the names and formatting of dates all come from bikram-sambat-ts, its only runtime dependency. bikram-sambat-ts's data is exported from go-bs and checked against it for every supported day; see its calendar data page for the sources and how they're verified, including the known issues.

So a calendar's grid is always exactly what bikram-sambat-ts computes: in Ashwin 2083, day 1 falls on a Thursday and the month has 31 days. When bikram-sambat-ts updates its data, the components follow, with no change to bikram-sambat-react.

The supported range

The components support the same range as bikram-sambat-ts:

	From	To
Bikram Sambat	1979-01-01 (Baisakh 1)	2100-12-31 (Chaitra 31)
Gregorian (AD)	1922-04-13	2044-04-13

At the edges:

• The year select offers exactly 1979 to 2100, and the previous/next buttons are disabled at Baisakh 1979 and Chaitra 2100.
• Keyboard navigation stops at the first and last supported day.
• A value, defaultValue, minDate, maxDate or today outside the range (or otherwise not a real BS date) is ignored rather than throwing, so a bad value can't crash your page.
• If the device's clock is outside the range, nothing is highlighted as today.

minDate and maxDate narrow the range further. They can't widen it.