"Sat, 11 May 2024 18:42:42"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
18:42:42
General datetime
2024-05-11 18:42:42Z
For Database
2024-05-11 18:42:42
For HTTP1.1
Sat, 11 May 2024 18:42:42 GMT