Tempora

Simple Zig Dates/Times/Timezones

Features

• Efficient storage (32b Time, 32b Date, 64b Date_Time)
• Composition and decomposition (year, ordinal day/week, month, day, weekday, hour, minute, second, ms)
• Add/subtract days/hours/minutes/seconds/ms
• Advance to the next weekday/day/ordinal day
• Convert to/from unix timestamps
• Embedded IANA timezone database and modified version of zig-tzif (adds about 200k to binary size when used)
• Query current timezone on both unix and Windows systems
• Moment.js style formatting and parsing (through std.fmt)

Limitations

• It's not possible to store most "out of bounds" dates/times (e.g. Jan 32).
• Localized month and weekday names are not supported; only English.
• Non-Gregorian calendars are not supported.
• Date/time values directly correspond to timestamps, so accurate durations that take leap seconds into account are not possible (but leap seconds are being abolished in 2035 anyway).
• I am certain that there are more optimized algorithms for timestamp <--> calendar conversions (but performance should be fine for all but the most demanding use cases).