_date-time-ranges
Write dates and clock times in ranges in full. Separate the start and end of the range with the word "to." Introduce the range with the word "from" as needed.
In ranges of time, always include the AM or PM indicator for both the start and end times. If you are specifying a time zone, write it once at the end of the time range.
| Incorrect | Correct |
|---|---|
| Mon-Fri | Monday to Friday |
| October 1–5 2023 | October 1, 2023 to October 5, 2023 |
| 1:00 to 5:00 PM | 1:00 PM to 5:00 PM |
| 10 AM–2 PM Central European Standard Time (UTC+1) | 10:00 AM to 2:00 PM Central European Standard Time (UTC+1) |
For ranges involving both dates and times, use the following formats:
| Range | Formula | Example |
|---|---|---|
| Start and end times on the same date | date from start-time to end-time | May 4, 2025 from 12:00 PM to 4:00 PM |
| Start and end times on different dates | from start-date at start-time to end-date at end-time | from Thursday, June 1 at 9:00 AM to Friday, June 30 at 5:00 PM |