Different spirits have different aging requirements as set out by local legislation. Here are some examples of classic aged spirits - and of course, great ideas for Father's Day!
COGNAC/ARMAGNAC: VS - 2 years (1 year for Armagnac); VSOP - 4 years; XO - 6 years
SINGLE MALT WHISKY: Minimum 3 years (but 8 is common). An age on the bottle indicates the minimum time spent aging in barrels.
RUM: No minimum, but as with Single Malts, the age on the bottle represents the minimum. 1 Year aging in tropical heat, however, is equivalent to 3 years in cool-climate Scotland.