Dev tools · alternatives · 2026
24 alternatives to Clock-Zone.com
Free alarm clock, timers, sleep calculator & world clock
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
More than just an online alarm clock
2023 · alarmnclock.com · its alternatives →
- 2
Timezone converter and world clock by time.fyi is a simple, fast and easy to use app to convert timezones and check the current time in different cities around the world.
2024 · time.fyi · its alternatives →
- 3IM
2020 · sleepsources.com · its alternatives →
- 4
Web based time tools including alarms, timers, stopwatch, and time zone converter. Resources also include Tabata, Pomodoro and other useful timers, tips and tactics for managing time and time tracking. Dark mode included!
2023 · alarmclocktab.com · its alternatives →
- 5
SleepCycle▲112A bio-alarm clock that analyzes your sleep pattern
2014 · sleepcycle.com · its alternatives →
- 6
ClockZones▲174Instantly view up to 8 timezones live from your menubar.
2024 · clockzones.app · its alternatives →
- 7
TabTimer▲195The world's tiniest timer. Built for your browser.
2024 · tabtimer.net · its alternatives →
- 8
- 9
Calculate exact time anywhere in the world across time zones
2020 · timezoneconverterapp.com · its alternatives →
- 10
Flip Clocker▲124Flip clock & time zone converter & white noise & world time
2023 · flipclocker.com · its alternatives →
- 11
- 12
Find your perfect bedtime & wake time
2025 · navi-resources.com · its alternatives →
- 13
Free sleep tools to help you wake up refreshed
2025 · sleepcalculators.net · its alternatives →
- 14
The cleanest free online clock with alarm, timer & stopwatch
2025 · quickclock.net · its alternatives →
- 15
Hypnos▲78Hypnos calculates your sleep cycles and set morning alarm.
2020 · apps.apple.com · its alternatives →
- 16
- 17TK
I kept running into this: timer on my laptop, alarm on my phone, timezone / discord timestamp conversion app in a separate tab. Switching between them was a hassle and I wanted to be able to set them up and manage really fast anywhere I was. So I built Time Keep, it puts world clocks, timers, alarms, countdowns, a stopwatch, breaks, a sleep planner, Discord timestamps, and more into one always open place. Works without an account or signup. All tools are fully functional immediately. Sign in to save your data across sessions. Pro adds live cross-device sync. Shared countdown links show…
Mar 2026 · its alternatives →
- 18
- 19
Free sleep calculator and sleep cycle calculator to find your optimal bedtime and wake-up time. Calculate your REM sleep cycles for better rest and energy
2025 · sleepcalculators.org · its alternatives →
- 20
Sleep Tracking App to Monitor Your Sleep Cycle
2024 · shuteye.ai · its alternatives →
- 21
Best Time to Go to Bed and Wake Up
2022 · shuteye.ai · its alternatives →
- 22
Xclock ▲3Productivity, Web App, Time, Tracking Tech, Clock ,Timer
Jul 2026 · xclock.net · its alternatives →
- 23
Free Online Timezone Checker
Nov 2025 · whatismytimezone.net · its alternatives →
- 24
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →