Written and reviewed by FormulaCraft Team. Each formula on this page is run through our verification engine before publishing.
Last reviewed:
HOUR
HOUR extracts the hour portion of a time serial number, returning an integer from 0 (midnight) to 23. Use it to classify events by time of day, calculate shift assignments, or build hour-level aggregations from timestamped data.
Excel
=HOUR(TIMEVALUE("14:30:00"))Google Sheets
=HOUR(TIMEVALUE("14:30:00"))✓
Verified example
Computed by a real spreadsheet engine on the sample data below.
| Timestamp | HourOfDay |
| 0.375 | |
| 0.604166667 | |
| 0.916666667 | |
| 0.041666667 |
=HOUR(TIMEVALUE("14:30:00"))→14
Try it with your data
Edit the grid or formula, then run it through a real spreadsheet engine — no signup.
Sample data — click any cell to edit
Runs server-side · free · no signup
How it works
- 1Ensure timestamps are stored as Excel time or date-time serial values in column A.
- 2In cell B2 enter =HOUR(A2) to extract the hour (0–23).
- 3Use the result in an IF or nested formula to categorise records into morning, afternoon, or evening shifts.
Need a version for your data?
Try: “Find what hour of the day each customer support ticket was submitted”