Howard Hinnant
a610f087c1
* Avoids the need to download the IANA database. * Heavily based on contributions by Aaron Bishop. * Turn on with -DUSE_OS_TZDB, off by default. * Not supported on Windows. * Disables HAS_REMOTE_API. * get_tzdb().version only supported on Apple. This string has the value "unknown" elsewhere. * Leap second support is missing on Apple, and may not be on your platform either (please report). Leap second support is enabled, disabled with -DMISSING_LEAP_SECONDS. Without leap second support, utc_time, tai_time, and gps_time (and those clocks) are not available. * On Apple, time zone transitions are only supported in the range: 1901-12-13 20:45:52 to 2038-01-19 03:14:07 * On Linux, time zone transitions are only as far in the future as the OS-provided transitions go. There is no support for POSIX- style transitions.
This is actually several separate C++11/C++14 libraries:
-
"date.h"is a header-only library which builds upon<chrono>. It adds some newdurationtypes, and newtime_pointtypes. It also adds "field" types such asyear_month_daywhich is a struct{year, month, day}. And it provides convenient means to convert between the "field" types and thetime_pointtypes. -
"tz.h"/"tz.cpp"are a timezone library built on top of the"date.h"library. This timezone library is a complete parser of the IANA timezone database. It provides for an easy way to access all of the data in this database, using the types from"date.h"and<chrono>. The IANA database also includes data on leap seconds, and this library provides utilities to compute with that information as well. -
"iso_week.h"is a header-only library built on top of the"date.h"library which implements the ISO week date calendar.- Documentation: http://howardhinnant.github.io/date/iso_week.html
-
"julian.h"is a header-only library built on top of the"date.h"library which implements a proleptic Julian calendar which is fully interoperable with everything above.- Documentation: http://howardhinnant.github.io/date/julian.html
-
"islamic.h"is a header-only library built on top of the"date.h"library which implements a proleptic Islamic calendar which is fully interoperable with everything above.- Documentation: http://howardhinnant.github.io/date/islamic.html
"date.h" and "tz.h" are now being proposed for standardization: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0355r2.html
Projects that use this project
If you would like to see your project listed here, and it isn't, please let me know. If your project is listed here and it shouldn't be, please let me know.