"Sun, 19 May 2024 09:57:16"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240519
Only TIME
09:57:16
General datetime
2024-05-19 09:57:16Z
For Database
2024-05-19 09:57:16
For HTTP1.1
Sun, 19 May 2024 09:57:16 GMT