:sig
String time_format_utc(String format = "", u64 timestamp = 0)

:params
format : formatting string specifying the date format
timestamp : optional timestamp value, defaults to current time
return value : a formatted date

:see
>time
>time_format_relative

:content
Formats a timestamp in the GMT/UTC timezone.

This formatter is based on the Linux `date` command and supports the same core formatting tokens plus UCE's relative-time delta tokens.

Supported format sequences:


Padding and case flags may follow `%`:



:example
print(time_format_utc("%Y-%m-%d", 0), "\n");
