"Sun, 05 May 2024 12:13:15"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240505
Only TIME
12:13:15
General datetime
2024-05-05 12:13:15Z
For Database
2024-05-05 12:13:15
For HTTP1.1
Sun, 05 May 2024 12:13:15 GMT