time.Duration support for days notation

[naueramant]

Right now the time.Duration field can only parse the units supported by time.Parse which is "ns", "us" (or "µs"), "ms", "s", "m", "h".

Would there be an interest in adding support for days? This would make some real world configurations such as "365d" instead of "9125h" a lot more readable.

[lorenzodonini]

Seems like this is just using the std time.ParseDuration method under the hood, which does not support days as a unit. This is probably because a day is not always equal to 24h (and all other "higher time units" as a consequence).