"Sat, 11 May 2024 21:04:19"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240511
Only TIME
21:04:19
General datetime
2024-05-11 21:04:19Z
For Database
2024-05-11 21:04:19
For HTTP1.1
Sat, 11 May 2024 21:04:19 GMT