"Sat, 29 Jun 2024 23:21:04"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240629
Only TIME
23:21:04
General datetime
2024-06-29 23:21:04Z
For Database
2024-06-29 23:21:04
For HTTP1.1
Sat, 29 Jun 2024 23:21:04 GMT