"Sun, 14 Jul 2024 06:40:20"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240714
Only TIME
06:40:20
General datetime
2024-07-14 06:40:20Z
For Database
2024-07-14 06:40:20
For HTTP1.1
Sun, 14 Jul 2024 06:40:20 GMT