Format a time with no space and no full stop, and write out fractions of hours in full. Use the 12-hour clock Format a time with no space and no full stop. Separate the hour and minute using a colon. Do not use the 24-hour clock. Examples 10am 5:30pm 3pm to 5pm 10am to 10:30am 9am to 5:30pm Periods of time Write out fractions of hours in full: Examples half an hour one and a half hours one and three-quarter hours If you're using a time period as an adjective, use hyphens. a half-hour wait a one-and-a-half-hour wait This article was published on 2024-09-17
