"Sat, 25 May 2024 14:10:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240525
Only TIME
14:10:21
General datetime
2024-05-25 14:10:21Z
For Database
2024-05-25 14:10:21
For HTTP1.1
Sat, 25 May 2024 14:10:21 GMT