boostorg/date_time

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Boost.org date_time module

Stars: 70
Forks: 99
Open beginner issues: 0
Indexed issues: 47

Dominant language: C++
License: BSL-1.0
Last GitHub push: May 31, 2026
Latest indexed: Sep 14, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

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47 open issues indexed

Retire built-in and aging time zone database in favor of using IANA Open

enhancement

boostorg/date_time#67 · 9 comments · 3 reactions · 0 assignees · Indexed Sep 14, 2026
Flaky test: if at second boundary can fail and cause CI build to fail Open

bug

boostorg/date_time#75 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
enhancement request local_date_time::check_dst Open

enhancement

boostorg/date_time#78 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
formatting broken in czech (and others?) Open

enhancement

boostorg/date_time#83 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
warning in to_time_t when std::time_t is 32-bit Open

boostorg/date_time#91 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[cygwin] after updating cygwin on appveyor, date_time fails to build Open

boostorg/date_time#92 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
to_posix_string() returns invalid timezone string Open

boostorg/date_time#94 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Inconsistent '%f' behaviour between boost::posix_time::time_facet and boost::posix_time::time_input_facet Open

boostorg/date_time#102 · 8 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
time_duration is not a complete partial order regarding time_duration(not_a_date_time) Open

boostorg/date_time#104 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
time_duration inefficient compared to ptime and gregorian::date Open

boostorg/date_time#105 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Optional leading zero for the 'day of month' format specifier Open

boostorg/date_time#106 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
gregorian::date/date_time deserialized via exception handling Open

boostorg/date_time#108 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
to_iso_extended_string documentation wrong about fraction print Open

boostorg/date_time#110 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
add_month no longer available Open

boostorg/date_time#112 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
minor comment edit needed Open

boostorg/date_time#114 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
List of non BOOST-prefixed macros Open

boostorg/date_time#118 · 9 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
gcc9 c++2a Wdeprecated-copy -- implicity declared operator= for date_duration, date, and friends Open

boostorg/date_time#139 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
formal support for c++20 operator<=> Open

enhancement

boostorg/date_time#141 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 14, 2026
date-time "l" output format code is unimplemented Open

enhancement

boostorg/date_time#156 · 10 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
from_time_t(t1 + t2) gains incorrect and different results on Windows and Linux Open

boostorg/date_time#157 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Inexactness in julian_day() function. Open

boostorg/date_time#167 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
'possible loss of data' warning when using wide-character wtime_input_facet Open

boostorg/date_time#171 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
construction of input facet is slow, e.g., local_time_input_facet Open

boostorg/date_time#177 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
boost::posix_time::time_input_facet accepting wrong date format Open

boostorg/date_time#184 · 1 comment · 3 reactions · 1 assignee · Indexed Sep 14, 2026
Compilation problems with greg_serialize.hpp Open

boostorg/date_time#181 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Request: introduce conversion between ptime and chrono system time Open

boostorg/date_time#186 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Improve the error documentation Open

boostorg/date_time#188 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Is -D_GLIBCXX_DEBUG_PEDANTIC supported? Open

boostorg/date_time#190 · 2 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Is this function designed intentionally? boost::date_time::c_time::gmtime doesn't touch the result pointer passed. Open

boostorg/date_time#199 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 14, 2026
Issue in std::basic_string<charT> to_simple_string_type(time_duration td) with locales Open

boostorg/date_time#200 · 7 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
boost::posix_time::time_from_string not threadsafe until the get_month_map_ptr() has completed once Open

boostorg/date_time#223 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Dates before 1400-01-01 Open

boostorg/date_time#217 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
boost::date_time types: error: ambiguous overload for 'operator+' after upgrade to rhel8 Open

boostorg/date_time#222 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
How to get document for project Open

boostorg/date_time#218 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
missing entries in data/date_time_zonespec.csv Open

boostorg/date_time#221 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
[MSVC][std:c++latest] boost\date_time build failed due to error C2666: 'boost::date_time::base_time<boost::posix_time::ptime,boost::posix_time::posix_time_system>::operator ==': overloaded functions have similar conversions Open

boostorg/date_time#224 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Gregorian istream exception with empty input Open

boostorg/date_time#225 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
day_of_year().max() returns 366 while 2002 had 365 days Open

boostorg/date_time#229 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Add a way to create a time zone that is set on the system Open

boostorg/date_time#230 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Formatting `ptime` does not produce time zone information in the output Open

boostorg/date_time#231 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
local_microsec_clock::local_time(time_zone_ptr) occasionally returns an incorrect time Open

boostorg/date_time#233 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Core guideline: Use constexpr for values that can be computed at compile time Open

boostorg/date_time#237 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Posix time zone implementation not standard compliant Open

boostorg/date_time#240 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 14, 2026
boost::local_time::posix_time_zone_base<char>::M_func may trigger an assert on invalid inputs Open

boostorg/date_time#241 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
`boost::posix_time::duration` multiplication/division limited to `int`. Open

boostorg/date_time#246 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026
Memory leak in stream operators for `posix_time::time_duration` Open

boostorg/date_time#249 · 0 comments · 2 reactions · 0 assignees · Indexed Sep 14, 2026
Warning C4244 when using wtime_input_facet with MSVC Open

boostorg/date_time#253 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 14, 2026

boostorg/date_time

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