microsoft / microsoft/STL

<chrono>: clock_cast throws an exception under windows7 sp1

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chrono enhancement
Dominant language
C++
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Description

code:
try { auto timestamp = std::chrono::clock_cast<std::chrono::system_clock>(std::filesystem::last_write_time(entity)); } catch (const std::exception& e) { // Caught exception }

debug:
__std_tzdb_get_time_zones failed because the error code is _Win_error

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  4. Open a pull request that references the issue number.

Research direction

Start with the provided clock_cast reproducer on Windows 7 SP1 and investigate the __std_tzdb_get_time_zones failure reported in the debug output. Compare the behavior with a supported Windows environment; done means the same filesystem timestamp conversion no longer throws on Windows 7 SP1.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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