Date
In Colombia, the standard dd/mm/yyyy is widely used, also Roman numbers are commonly used to represent the month as in:
31/XII/2008Also long date format is used, example:
31 de diciembre de 2008 (31 December 2008)Time
Colombia uses a 12-hour format for clocks, but a format specifying the place of the sun is more commonly used for informal communication. This is because there are no time seasons, so that sunset and dawn are at approximately the same time every day. For example:
References
Date and time notation in Colombia Wikipedia(Text) CC BY-SA