...
<time> ::= [<int>( years | year )] [<int>( months | month )] [<int>( weeks | week )] [<int>( days | day )] [<int>( hours | hour )] [<int>( minutes | min | minute )] [<int>( seconds | second | sec )]
[<int>( milliseconds | millisecond )]
...
<time> ::= [<int>( years | year )] [<int>( months | month )] [<int>( weeks | week )] [<int>( days | day )] [<int>( hours | hour )] [<int>( minutes | min | minute )] [<int>( seconds | second | sec )]
[<int>( milliseconds | millisecond )]