Test

fix: Improve date parsing (fractional seconds, UTC offsets) #4667

Job	Run time
Check	3s
Runtimes	32s
Compiler (ubuntu, node current)	2m 8s
Coverage	3m 44s
Compiler (ubuntu, node lts/*)	2m 6s
Bootstrap (debug)	6m 21s
Features	23s
Compiler (macos, node current)	2m 46s
Bootstrap (release)	6m 47s
Compiler (macos, node lts/*)	3m 22s
Loader	23s
Compiler (windows, node current)	2m 26s
Compiler (windows, node lts/*)	2m 58s
	33m 59s

Provide feedback