NAME¶

fmt_iso8601 - write a date in ASCII conforming to ISO-8601

SYNTAX¶

#include <libowfat/fmt.h>

size_t fmt_iso8601(char *dest,time_t source);

DESCRIPTION¶

fmt_iso8601 writes a date in ASCII representation as ISO-8601 defines it: "2014-05-27T19:22:16Z". ISO-8601 also allows to store a sub-second part and a time zone, but fmt_iso8601 does not support that.

fmt_iso8601 does not append \0.

If dest equals FMT_LEN (i.e. is zero), fmt_iso8601 returns the number of bytes it would have written.

The return value of fmt_iso8601 is 20 until Jan 1st 10000.