Wikitravel:Time and date formats
When giving times and dates, such as for opening and closing times of attractions, restaurants and bars, use the following format.
Use the 24 hour clock eg: 10:30-17:00
In 24-hour format, always show minutes using a colon as the separator; eg: 17:00, not 17.00 nor 17-00 and not just 17 and never 17:0.
For articles about topics where the AM/PM system (or 12-hour format) is prevalent, the following format can be used as an alternative: 10:30AM-5PM.
Choose to deviate from our 24 hour standard format only to follow predominant local usage. Ask yourself: which format will visitors see in newspapers, on shop doors, and on train schedules?
Days of the week
Abbreviate to the minimum number of letters, i.e., M Tu W Th F Sa Su.
Use the date format of 10 Jan 2003.
Abbreviate months to three letters, i.e., Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec.
Avoid using dates such as 10/1/03, 10-1-03 or 10/1/2003 as this can mean 10 Jan 2003 or 1 Oct 2003 to different people.