"Sun, 16 Feb 2025 06:25:25"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250216
Only TIME
06:25:25
General datetime
2025-02-16 06:25:25Z
For Database
2025-02-16 06:25:25
For HTTP1.1
Sun, 16 Feb 2025 06:25:25 GMT