*repeats the group contents below any number of times:
+the literal (3210 / 408 / 2016) , repeated at least once
\d+a digit, repeated at least once
\s+any whitespace character, repeated at least once
Non-Capturing Group(?:second|minute|hour|day|week|month|year) secondthe literal text second (case insensitive) minutethe literal text minute (case insensitive) hourthe literal text hour (case insensitive) daythe literal text day (case insensitive) weekthe literal text week (case insensitive) monththe literal text month (case insensitive) s?optionally matches the literal s (11510 / 1638 / 7316) (case insensitive)