"Mon, 23 Jun 2025 14:44:58"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250623
Only TIME
14:44:58
General datetime
2025-06-23 14:44:58Z
For Database
2025-06-23 14:44:58
For HTTP1.1
Mon, 23 Jun 2025 14:44:58 GMT