"Sat, 29 Jun 2024 14:04:35"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
14:04:35
General datetime
2024-06-29 14:04:35Z
For Database
2024-06-29 14:04:35
For HTTP1.1
Sat, 29 Jun 2024 14:04:35 GMT