Test

fix: optimize dayOfWeek & dateFromEpoch routines in date #5140

Job	Run time
Check	4s
Features	25s
Runtimes	35s
Bootstrap (debug)	3m 53s
Bootstrap (release)	4m 52s
Coverage	3m 55s
Compiler (windows, node lts/*)	2m 9s
Compiler (macos, node lts/*)	1m 51s
Compiler (macos, node current)	1m 35s
Compiler (windows, node current)	2m 5s
Compiler (ubuntu, node lts/*)	1m 34s
Compiler (ubuntu, node current)	1m 42s
Loader	25s
	25m 5s

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