=== second
--- input: 2->second
--- expected: 2

=== seconds
--- input: 3->seconds
--- expected: 3

=== minute
--- input: 2->minute
--- expected: 120

=== minutes
--- input: 3->minutes
--- expected: 180

=== hour
--- input: 2->hour
--- expected: 7200

=== hours
--- input: 3->hours
--- expected: 10800

=== day
--- input: 2->day
--- expected: 172800

=== days
--- input: 3->days
--- expected: 259200

=== week
--- input: 2->week
--- expected: 1209600

=== weeks
--- input: 3->weeks
--- expected: 1814400

=== fortnight
--- input: 2->fortnight
--- expected: 2419200

=== fortnights
--- input: 3->fortnights
--- expected: 3628800

=== month
--- input: 2->month
--- expected: 5184000

=== months
--- input: 3->months
--- expected: 7776000

=== year
--- input: 2->year
--- expected: 63115200

=== years
--- input: 3->years
--- expected: 94672800