"Sun, 23 Jun 2024 20:09:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240623
Only TIME
20:09:20
General datetime
2024-06-23 20:09:20Z
For Database
2024-06-23 20:09:20
For HTTP1.1
Sun, 23 Jun 2024 20:09:20 GMT