"Mon, 15 Jul 2024 20:46:46"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240715
Only TIME
20:46:46
General datetime
2024-07-15 20:46:46Z
For Database
2024-07-15 20:46:46
For HTTP1.1
Mon, 15 Jul 2024 20:46:46 GMT