"Sun, 21 Jan 2024 06:23:05"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240121
Only TIME
06:23:05
General datetime
2024-01-21 06:23:05Z
For Database
2024-01-21 06:23:05
For HTTP1.1
Sun, 21 Jan 2024 06:23:05 GMT