"Sat, 25 May 2024 23:18:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240525
Only TIME
23:18:35
General datetime
2024-05-25 23:18:35Z
For Database
2024-05-25 23:18:35
For HTTP1.1
Sat, 25 May 2024 23:18:35 GMT