"Mon, 15 Jan 2024 06:23:18"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240115
Only TIME
06:23:18
General datetime
2024-01-15 06:23:18Z
For Database
2024-01-15 06:23:18
For HTTP1.1
Mon, 15 Jan 2024 06:23:18 GMT