I have a weird thing going on with __DATE__ and __TIME__ when building my app in the yocto environment.  I'm building for "genericx86-64" and I'm using __DATE__ and __TIME__ in my source to show what the build date/time of my app is at run time.  But... __DATE__ is always "Apr  5 2011" and __TIME__ is always "23:00:00".  And, yes, the current time on the build machine is not that.  Anyone else experience this and/or know how to fix it?  Oh, host is Ubuntu 20.04.3 LTS.

In your build you have reproducible build enabled. https://docs.yoctoproject.org/3.4/test-manual/reproducible-builds.html. You should be able to disable this function with help of the variable BUILD_REPRODUCIBLE_BINARIES. Reproducible builds are now enableb by default in Yocto.

/Peter