"Sat, 04 May 2024 18:21:52"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240504
Only TIME
18:21:52
General datetime
2024-05-04 18:21:52Z
For Database
2024-05-04 18:21:52
For HTTP1.1
Sat, 04 May 2024 18:21:52 GMT