"Sun, 19 May 2024 22:21:54"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
22:21:54
General datetime
2024-05-19 22:21:54Z
For Database
2024-05-19 22:21:54
For HTTP1.1
Sun, 19 May 2024 22:21:54 GMT