In countries that use the 12-hour time format, there will even be two instances of 12:12:12 per time zone: first just after midnight (12:12:12 a.m.), then just after midday (12:12:12 p.m.).
The number 12 has a great significance in many cultures.
In western tradition, it is commonly associated with completeness and seen as a perfect and harmonious unit. As such, it has found its way into religion (e.g. the 12 apostles), mythology (e.g. the 12 gods of Olympus), and every day life (e.g. 12 hours on a modern clock face).
The practical and numerological significance of the number 12 is attributed not least to its mathematical properties. There are few small numbers that can be evenly divided by so many subsets. 12 is evenly divisible by 1, 2, 3, 4, and 6.
