Times
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