"Sat, 29 Jun 2024 17:21:00"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
17:21:00
General datetime
2024-06-29 17:21:00Z
For Database
2024-06-29 17:21:00
For HTTP1.1
Sat, 29 Jun 2024 17:21:00 GMT