"Sat, 29 Jun 2024 13:59:33"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
13:59:33
General datetime
2024-06-29 13:59:33Z
For Database
2024-06-29 13:59:33
For HTTP1.1
Sat, 29 Jun 2024 13:59:33 GMT