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UpcomingDays

Free date tools: holiday countdowns, date calculators, calendars and public holidays by country. Posts on the calendar edge cases we hit building them.

Joined on Oct 8, 2026 https://upcomingdays.com/

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UpcomingDays (upcomingdays.com)

Oct 8

Your holiday library is probably right. Here are the days it got wrong for us, and the correction layer we built

#python #datascience #opensource #tutorial

4 min read

Oct 8

Computing Eid, Rosh Hashanah and Lunar New Year dates in JavaScript with Intl calendars, and where it goes wrong

#javascript #i18n #webdev #tutorial

4 min read

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