"Sun, 16 Jun 2024 21:21:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240616
Only TIME
21:21:42
General datetime
2024-06-16 21:21:42Z
For Database
2024-06-16 21:21:42
For HTTP1.1
Sun, 16 Jun 2024 21:21:42 GMT