Import the new 2025c tzdata.zi file and new leapseconds expiry date.
libstdc++-v3/ChangeLog:
* include/std/chrono (chrono::__detail::__get_leap_second_info):
Update expiry date for leap seconds list.
* src/c++20/tzdb.cc (tzdb_list::_Node::_S_read_leap_seconds):
Likewise.
* src/c++20/tzdata.zi: Import new file from 2025c release.
---
Tested x86_64-linux (on Fedora and RHEL 10 with updated tzdata RPMs
installed).
libstdc++-v3/include/std/chrono | 2 +-
libstdc++-v3/src/c++20/tzdata.zi | 6 ++----
libstdc++-v3/src/c++20/tzdb.cc | 4 ++--
3 files changed, 5 insertions(+), 7 deletions(-)
diff --git a/libstdc++-v3/include/std/chrono b/libstdc++-v3/include/std/chrono
index 3e0cf42e5491..76fc8de24f00 100644
--- a/libstdc++-v3/include/std/chrono
+++ b/libstdc++-v3/include/std/chrono
@@ -3240,7 +3240,7 @@ namespace __detail
};
// The list above is known to be valid until (at least) this date
// and only contains positive leap seconds.
- const sys_seconds __expires(1766880000s); // 2025-12-28 00:00:00 UTC
+ constexpr sys_seconds __expires(1782604800s); // 2026-06-28 00:00:00 UTC
#if _GLIBCXX_USE_CXX11_ABI || ! _GLIBCXX_USE_DUAL_ABI
if (__ss > __expires)
diff --git a/libstdc++-v3/src/c++20/tzdata.zi b/libstdc++-v3/src/c++20/tzdata.zi
index a7fb52f1968f..c56f67c02f6d 100644
--- a/libstdc++-v3/src/c++20/tzdata.zi
+++ b/libstdc++-v3/src/c++20/tzdata.zi
@@ -1,4 +1,4 @@
-# version 2025b
+# version 2025c
# This zic input file is in the public domain.
R d 1916 o - Jun 14 23s 1 S
R d 1916 1919 - O Su>=1 23s 0 -
@@ -2951,9 +2951,7 @@ Z America/Tijuana -7:48:4 - LMT 1922 Ja 1 7u
-8 1 PDT 1951 S 30 2
-8 - PST 1952 Ap 27 2
-8 1 PDT 1952 S 28 2
--8 - PST 1954
--8 CA P%sT 1961
--8 - PST 1976
+-8 CA P%sT 1967
-8 u P%sT 1996
-8 m P%sT 2001
-8 u P%sT 2002 F 20
diff --git a/libstdc++-v3/src/c++20/tzdb.cc b/libstdc++-v3/src/c++20/tzdb.cc
index d79b61ad673f..77b283fb6990 100644
--- a/libstdc++-v3/src/c++20/tzdb.cc
+++ b/libstdc++-v3/src/c++20/tzdb.cc
@@ -1245,8 +1245,8 @@ namespace std::chrono
pair<vector<leap_second>, bool>
tzdb_list::_Node::_S_read_leap_seconds()
{
- // This list is valid until at least 2025-12-28 00:00:00 UTC.
- auto expires = sys_days{2025y/12/28};
+ // This list is valid until at least 2026-06-28 00:00:00 UTC.
+ constexpr auto expires = sys_days{2026y/06/28};
vector<leap_second> leaps
{
(leap_second) 78796800, // 1 Jul 1972
--
2.52.0
