"Sat, 25 May 2024 23:18:47"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240525
Only TIME
23:18:47
General datetime
2024-05-25 23:18:47Z
For Database
2024-05-25 23:18:47
For HTTP1.1
Sat, 25 May 2024 23:18:47 GMT