"Sat, 27 Jul 2024 18:13:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20240727
Only TIME
18:13:21
General datetime
2024-07-27 18:13:21Z
For Database
2024-07-27 18:13:21
For HTTP1.1
Sat, 27 Jul 2024 18:13:21 GMT