"Sat, 29 Jun 2024 18:35:44"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
18:35:44
General datetime
2024-06-29 18:35:44Z
For Database
2024-06-29 18:35:44
For HTTP1.1
Sat, 29 Jun 2024 18:35:44 GMT