"Mon, 21 Oct 2024 04:00:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20241021
Only TIME
04:00:00
General datetime
2024-10-21 04:00:00Z
For Database
2024-10-21 04:00:00
For HTTP1.1
Mon, 21 Oct 2024 04:00:00 GMT