Clock padding modifier not correctly interpreted

[Frodojj]

The chrono date specification allows padding modifiers to change how leading zeros are interpreted. For example, %_I should show a single digit hour padded like a space like " 1" instead of "01". At least, I believe that is how it should behave. However, using such modifiers seems to crash the module. It complains that there is an invalid specifier in chrono-specs.

[LukashonakV]

Hi @Frodojj, actually you are referring to the chrono specification of the fmt library. At the same time, there are two different implementations of the clock. The first one uses fmt library, the second one uses c++20 standard library where it is announced full support of the chrono specification.. but paddlings are not supported. At least it was so, when I did modifications in the clock component last time. Which implementation approach is used depends on the system, in which Waybar is compiled. Whether the system supports C++20 chrono headers.

[LukashonakV]

PR to fmt is raised to support zoned_time formatter. fmtlib/fmt#4649
Standard std::chrono does not support padding specs are described at fmt wiki