"Sat, 29 Jun 2024 21:55:41"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
21:55:41
General datetime
2024-06-29 21:55:41Z
For Database
2024-06-29 21:55:41
For HTTP1.1
Sat, 29 Jun 2024 21:55:41 GMT