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path: root/shared/timeutils/timeutils.h
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2025-07-09shared/timeutils: Standardize supported date range on all platforms.Yoctopuce dev
This is code makes sure that time functions work properly on a reasonable date range, on all platforms, regardless of the epoch. The suggested minimum range is 1970 to 2099. In order to reduce code footprint, code to support far away dates is only enabled specified by the port. New types are defined to identify timestamps. The implementation with the smallest code footprint is when support timerange is limited to 1970-2099 and Epoch is 1970. This makes it possible to use 32 bit unsigned integers for all timestamps. On ARM4F, adding support for dates up to year 3000 adds 460 bytes of code. Supporting dates back to 1600 adds another 44 bytes of code. Signed-off-by: Yoctopuce dev <dev@yoctopuce.com>
2025-01-02shared/timeutils: Add missing mp_uint_t casts.Yoctopuce
To prevent compiler warnings. Signed-off-by: Yoctopuce <dev@yoctopuce.com>
2024-10-24shared/timeutils: Document the range of year/month/day etc input values.Damien George
These differ to, eg, the standard `mktime()` function. Signed-off-by: Damien George <damien@micropython.org>
2024-02-15shared/timeutils: Remove useless void-return.Yoctopuce
The C99 standard states: 6.8.6.4 The return statement Constraints A return statement with an expression shall not appear in a function whose return type is void. A return statement without an expression shall only appear in a function whose return type is void. And when `-pedantic` is enabled the compiler gives an error. Signed-off-by: Yoctopuce <dev@yoctopuce.com>
2022-04-11mimxrt/machine_rtc: Start RTC at boot and set datetime if not set.robert-hh
Changes in this commit: - Start the RTC Timer at system boot. Otherwise time.time() will advance only if an RTC() object was created. - Set the time to a more recent date than Jan 1, 1970, if not set. That is 2013/10/14, 19:53:11, MicroPython's first commit. - Compensate an underflow in in timeutils_seconds_since_2000(), called by time.time(), if the time is set to a pre-2000 date.
2021-07-12shared: Introduce new top-level dir and move 1st party lib code there.Damien George
This commit moves all first-party code developed for this project from lib/ to shared/, so that lib/ now only contains third-party code. The following directories are moved as-is from lib to shared: lib/libc -> shared/libc lib/memzip -> shared/memzip lib/netutils -> shared/netutils lib/timeutils -> shared/timeutils lib/upytesthelper -> shared/upytesthelper All files in lib/embed/ have been moved to shared/libc/. lib/mp-readline has been moved to shared/readline. lib/utils has been moved to shared/runtime, with the exception of lib/utils/printf.c which has been moved to shared/libc/printf.c. Signed-off-by: Damien George <damien@micropython.org>