🕰️ Category
Date & time
Time is harder than it looks. Convert between time zones with real daylight-saving rules, find meeting hours that work for several countries, turn timestamps into dates and count the days between two dates the way java.time does.
Where it is used: Used whenever teams or servers span time zones. Time is harder than it looks, so these tools use real daylight-saving rules.
Date & time on BackendBench: Meeting planner (find overlapping work hours across time zones); Time zone converter (ist to pst and 45 more zones, dst-aware); Epoch converter (timestamps to iso-8601, with java code); Date calculator (days between dates, add or subtract). Each one is free, needs no sign-up and runs entirely in your browser, so nothing you enter is uploaded.
Time zones and meetings
Convert between zones and find shared work hours.
Timestamps and date maths
Epoch values and days between dates.