"Sun, 26 May 2024 16:23:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240526
Only TIME
16:23:21
General datetime
2024-05-26 16:23:21Z
For Database
2024-05-26 16:23:21
For HTTP1.1
Sun, 26 May 2024 16:23:21 GMT