Setting Your Alarm for 18:40
The alarm controls are pre-set to 6:40 PM. Choose a sound, use Test Sound to confirm your volume, then press Set Alarm. Keep this tab open and the device awake until the alarm rings.
What this 18:40 preset does
- Preselected time: The controls load at 18:40 (18:40 in 24-hour format).
- Sound check: Choose a tone and press Test Sound before relying on it.
- Saved locally: When you set the alarm, it is stored in this browser and appears under My Alarms.
- Browser limitation: This tab must stay open and the device must remain awake for the alarm to ring.
Facts about 18:40
18:40 is twenty minutes to seven and falls in the evening. This time falls after the working afternoon and before the late-night period. It is 40 minutes after the hour and 20 minutes before 7:00 PM.
| 12-hour time | 18:40 |
|---|---|
| 24-hour time | 18:40 |
| Military time | 1840 (eighteen forty hours) |
| Written in words | Twenty minutes to seven |
| Spoken time | Six forty PM |
| Part of day | Evening |
| Minutes since midnight | 1,120 |
| Seconds since midnight | 67,200 |
| Day completed at this time | 77.78% |
| Time remaining to next midnight | 5 hrs 20 min |
| Smaller clock-hand angle | 40.0° |
Possible uses for a 18:40 alarm
This preset can be used for any task tied to 18:40. Depending on your own schedule, examples include:
- An evening appointment
- An end-of-day task
- A meal or activity reminder
For a task-focused setup, see the reminder alarm guide. To choose a completely different time, browse all online alarm presets.
Time from each whole hour to 18:40
The table shows the forward interval from the start of each hour to the next occurrence of 18:40.
| Whole-hour reference | ||
|---|---|---|
| From 12:00 AM | 18 hrs 40 min | 1,120 min |
| From 1:00 AM | 17 hrs 40 min | 1,060 min |
| From 2:00 AM | 16 hrs 40 min | 1,000 min |
| From 3:00 AM | 15 hrs 40 min | 940 min |
| From 4:00 AM | 14 hrs 40 min | 880 min |
| From 5:00 AM | 13 hrs 40 min | 820 min |
| From 6:00 AM | 12 hrs 40 min | 760 min |
| From 7:00 AM | 11 hrs 40 min | 700 min |
| From 8:00 AM | 10 hrs 40 min | 640 min |
| From 9:00 AM | 9 hrs 40 min | 580 min |
| From 10:00 AM | 8 hrs 40 min | 520 min |
| From 11:00 AM | 7 hrs 40 min | 460 min |
| From 12:00 PM | 6 hrs 40 min | 400 min |
| From 1:00 PM | 5 hrs 40 min | 340 min |
| From 2:00 PM | 4 hrs 40 min | 280 min |
| From 3:00 PM | 3 hrs 40 min | 220 min |
| From 4:00 PM | 2 hrs 40 min | 160 min |
| From 5:00 PM | 1 hr 40 min | 100 min |
| From 6:00 PM | 40 min | 40 min |
| From 7:00 PM | 23 hrs 40 min | 1,420 min |
| From 8:00 PM | 22 hrs 40 min | 1,360 min |
| From 9:00 PM | 21 hrs 40 min | 1,300 min |
| From 10:00 PM | 20 hrs 40 min | 1,240 min |
| From 11:00 PM | 19 hrs 40 min | 1,180 min |
Before you rely on this alarm
Confirm the displayed time, device volume, and audio output. For an important wake-up, appointment, or safety-critical reminder, use a phone or another device as a backup.
Nearby alarm options
Need a slightly different alarm time? Choose one of these nearby options:
- 6:25 PM alarm - earlier buffer
- 6:30 PM alarm - earlier buffer
- 6:35 PM alarm - earlier buffer
- 6:45 PM alarm - backup reminder
- 6:50 PM alarm - backup reminder
- 6:55 PM alarm - backup reminder
18:40 alarm questions
What is 18:40 in 24-hour and military time?
18:40 is 18:40 on a 24-hour clock and 1840 in military time.
What part of the day is 18:40?
18:40 falls in the evening. This time falls after the working afternoon and before the late-night period.
Will this browser alarm work for 18:40 if the tab is closed?
No. Keep this Alarm.now tab open and your device awake. Background tabs can continue running, but closing the tab, quitting the browser, or putting the device to sleep stops the web alarm.
Can I change 18:40?
Yes. Change the hour, minute, or AM/PM control before pressing Set Alarm, or open another nearby preset below.