"Sat, 29 Jun 2024 19:27:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
19:27:20
General datetime
2024-06-29 19:27:20Z
For Database
2024-06-29 19:27:20
For HTTP1.1
Sat, 29 Jun 2024 19:27:20 GMT