J. Nick Koston
5d93713404
[time] Guard against format string ending with bare %
2026-03-30 22:15:34 -10:00
J. Nick Koston
d0d8f2935d
[time] Handle %%Z/%%z correctly in strftime format substitution
2026-03-30 21:45:34 -10:00
J. Nick Koston
38e3095e35
[time] Fix strftime %Z and %z returning GMT/+0000 instead of actual timezone
...
Since the timezone bloat elimination (#13635 ) removed setenv("TZ")/tzset()
on embedded platforms, libc's ::strftime no longer has access to timezone
state for %Z and %z format specifiers. The time values (hour, minute, etc.)
are correct since they come from our custom timezone parser via struct tm
fields, but %Z and %z read from libc's internal _tzname/_timezone which
are stuck at GMT/+0000.
Fix by substituting %Z and %z in the format string with the correct
"+HHMM"/"-HHMM" designation computed from our parsed timezone offset
before passing to ::strftime. The substitution only runs when %Z or %z
are present in the format string, so there is no overhead for the common
case.
Also refactors strftime_to() to delegate to strftime() instead of
duplicating the ::strftime call, ensuring both code paths get the fix.
2026-03-30 21:26:23 -10:00
J. Nick Koston
f457b995f7
[datetime] Fix state_as_esptime() returning invalid timestamp ( #15128 )
2026-03-24 14:03:56 -10:00
J. Nick Koston
a9a8f4cb3b
[time] Fix timezone_offset() and recalc_timestamp_local() always returning UTC ( #14996 )
2026-03-20 13:58:14 -10:00
J. Nick Koston and Claude Opus 4.6
1ccfcfc8d8
[time] Eliminate libc timezone bloat (~9.5KB flash ESP32, ~2% RAM on ESP8266) ( #13635 )
...
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com >
2026-02-26 15:12:44 -10:00
ede8235aae
[core] more accurate check for leap year and valid day_of_month ( #14197 )
...
Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com >
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com >
2026-02-25 16:46:28 +00:00
J. Nick Koston
cd4cb8b3ec
[datetime] Add const char * overloads for string parsing to avoid heap allocation ( #13363 )
2026-01-20 17:50:01 -10:00
J. Nick Koston
20927674da
[sun] Eliminate heap allocation in text sensor ( #13037 )
2026-01-07 08:24:09 -10:00
J. Nick Koston
3377080272
[core] Simplify ESPTime::strftime() and save 20 bytes flash ( #11539 )
2025-10-28 11:16:09 +13:00
J. Nick Koston
24dcc1843e
[time] Fix clang-tidy sign comparison errors ( #11080 )
2025-10-06 14:34:40 -05:00
Eyal
f286bc57f3
[core] Fix timezone offset calculation ( #10426 )
2025-09-02 16:45:25 +12:00
Adrian Freund
b0f8922056
Mark ESPTime comparison operators as const ( #9335 )
2025-07-05 22:00:39 +00:00
Quentin Raynaud
83e090cc7e
[time] fix recalc_timestamp_local ( #8239 )
2025-03-07 00:34:04 -08:00
Krzysztof Zdulski
30477c764d
Fix recalc_timestamp_utc ( #7894 )
2024-11-29 13:05:00 -08:00
Samuel Sieb and Samuel Sieb
a70cee1dc1
fix local time timestamp calculation ( #7807 )
...
Co-authored-by: Samuel Sieb <samuel@sieb.net >
2024-11-26 13:15:01 +13:00
RFDarter
d77ea46157
[datetime] datetime-datetime strptime support value string without seconds ( #6867 )
2024-06-08 08:29:10 +12:00
Jesse Hills
8ef7b41c91
Add datetime entities ( #6513 )
2024-04-26 09:19:54 +12:00
Jesse Hills
0148ebcaa6
Replace std::regex with sscanf calls ( #6468 )
...
* Replace std::regex with sscanf calls
* Fix CI
* Use regular formatting placeholders
* Fix
2024-04-03 19:41:41 -05:00
Gábor Poczkodi
7cb8f99884
Don't compile strptime unless its required ( #6424 )
2024-03-26 11:34:47 +13:00
RFDarter and Jesse Hills
1e96a19d09
Add datetime date entities ( #6191 )
...
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com >
2024-03-11 07:52:22 +13:00
Kevin P. Fleming
deb34c9473
time: Make std::string version of strftime() avoid runaway memory allocations ( #5348 )
2023-09-12 08:02:07 +12:00
Samuel Sieb
fc0e1a3cb9
remove unused static declarations ( #4993 )
2023-06-23 13:03:31 +12:00
Jesse Hills
302dea4169
Move ESPTime into core esphome namespace ( #4926 )
...
* Prep-work for datetime entities
* Fix some includes and remove some restrictions on printing time on displays
* format
* format
* More formatting
* Move function contents
* Ignore clang-tidy
2023-06-08 17:24:44 -05:00
J. Nick Koston