= Duration (time) =
Visit [wiki:olivine/dsl/types/core core types] for information on ''whole number''.

The duration type is used for expressing intervals of time.  It is a unary post-fix operator, which means you specify any value that resolves to a `whole number` and then follow it by the name of a time unit.  The possible time units are:
 * `milliseconds`
 * `seconds`
 * `minutes`
 * `hours`
 * `days`

Here are some self-explanatory examples:
{{{
5 days
4 minutes
2 milliseconds
}}}

One oddity with this syntax is that you must specify the plural form even for a value of `1` for example:
{{{
1 seconds
1 minutes
1 days
1 hours
}}}

Here is a more complex example involving an expression, this one expresses a duration of 6 hours:
{{{
(2 + 4) hours
}}}

== Partial Durations ==
You can add durations together (like other arithmetic values) to express partial time durations, this one for example expresses 2 minutes and 35 seconds:

{{{
2 minutes + 35 seconds
}}}