"Sat, 29 Jun 2024 23:45:27"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
23:45:27
General datetime
2024-06-29 23:45:27Z
For Database
2024-06-29 23:45:27
For HTTP1.1
Sat, 29 Jun 2024 23:45:27 GMT