"Fri, 21 Jun 2024 16:14:37"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240621
Only TIME
16:14:37
General datetime
2024-06-21 16:14:37Z
For Database
2024-06-21 16:14:37
For HTTP1.1
Fri, 21 Jun 2024 16:14:37 GMT