DayTime vs World Time Clock Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
DayTime
This app brings sundial functionality to your device, calculating sun and moon positions, daylight length, and sunrise/sunset times based on your location. Plan outdoor activities, vacations, or simply stay informed about celestial events with detailed tracking and optional alarms.
- Sunrise and sunset time display
- Daylight length calculation
- Moonrise and moonset tracking
- Global location support
- Sun and moon position simulation
- Optional alarms for celestial events
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DayTime brings the sundial into the twenty-first century. Using your location, DayTime calculates the position of the sun, the length of your day and the exact times of sunrise and sunset, and optionally, moonrise and moonset. DayTime works worldwide, so you aren’t limited to tracking the sun at home. Whether you’re planning your vacation for postcard-worthy sunsets and moonrises or just making the most of the daylight hours, it’s never been easier than with DayTime. DayTime is free to download, with additional features available through in-app purchase— Free Features ◆ Solar Time: See the hours of the day along the edge of the solar clock, along with the length of daylight and times of sunrise & sunset. ◆ Location: Using your device’s location service, finds the nearest location to choose time zone automatically – DayTime always uses your exact location for its calculations. Or, choose from an extensive list of presets to tell the solar time around the world. ◆ Simulation: Input date, time and location to show the position of the sun on any day, anywhere. ◆ Qibla pointer. Extra Features (Available through In-App Purchase) To access the following features, you can buy a six month subscription to app extras, or buy All Features, Forever for access that never expires. ◆ Sun Events: exact time display and alarms for sunrise and sunset; Astronomical, Nautical, and Civil Twilight; sunrise, solar noon, sunset; and solar midnight. ◆ Moon Events: orbit position and phase of the moon; exact time display and alarms for moonrise and moonset. ◆ Animation: input time, date, and location, then speed up time and watch the daily dance of the sun and moon, or watch as day length changes with the seasons. ◆ Salah Events: exact time display and alarms for Imsak, Fajr, Sunrise, Dhuhr, Asr, Maghrib, Isha, and Islamic Midnight. Qibla pointer included. ◆ Shabbat Events: exact time display and alarms for the start and end of Shabbat. Notes DayTime is accurate for dates within 100 years of the present. Salah Events supports calculations based on Islamic Society of North America; Muslim World League; Egyptian General Authority of Survey; Umm al-Qura University, Makkah; University of Islamic Sciences, Karachi; Institute of Geophysics, University of Tehran; and Shia Ithna Ashari, Leva Research Institute, Qum. Custom settings can be made. Adjustments may be specified for actual sunrise and sunset times at your location for even more precise Salah times. For detailed information please visit http://www.5Leaf.com Complete in-App features may be purchased outright or as an automatically renewing subscription. A note about the All Features Subscription: A 6-month subscription for all features of DayTime can be purchased. Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period; within 24 hours of the end of the current period, account will be charged for renewal. Renewal is at the same price. Any unused portion of a free trial period, if offered, will be forfeited when a subscription is purchased. Subscriptions may be managed and auto-renewal may be turned off by going to the Settings App, iTunes & App Store, Tap your Apple ID, View Apple ID, Subscriptions. Privacy Policy: http://www.5leaf.com/privacyPolicy.html Terms of Service: http://www.5leaf.com/termsOfUse.html
World Time Clock Master
Effortlessly manage multiple time zones with this app. Convert times instantly, schedule events, and view global clocks at a glance with interactive widgets. Features atomic accuracy and a vast database of locations.
- Multiple time zone display
- Interactive time conversion
- Event scheduling
- Atomic time accuracy
- Dynamic home screen widgets
- List mode for text view
- Real moon phases and sunrise/sunset
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THE EASIEST WAY TO DEAL WITH MULTIPLE TIMEZONES + INTERACTIVE WIDGETS Sick of screwing up meeting times and missing calls? This app cuts through time-zone confusion and hands you the perfect hour at a glance. Forget guesswork — just click, connect, and impress. KEY FEATURES EVENT SCHEDULING MADE EASY Found the perfect meeting time? Add events to your calendar with just a tap, and never miss an international webinar, call, or special moment again. ATOMIC ACCURACY No drift, no guesswork. Each second syncs with the atomic standard, so you can trust every moment. Extensive Time Zone Database: Tap into over 160,000 locations and time zones including GMT, UTC, and more. UNIFIED CLOCK FACE View all your essential time zones at a glance on one beautifully designed, customizable clock face. Whether you prefer digital or analog displays (or even military time), everything is exactly where you need it. INTERACTIVE TIME CONVERSION Convert times instantly by simply twisting or swiping across the clock face. Watch as your selected time zones update in real time—making planning international calls, meetings, or travel effortless. DYNAMIC WIDGETS Access global times without even opening the app. Our interactive home screen widget lets you drag a simple line to reveal and convert times, ensuring you’re always in sync no matter where you are. LIST MODE Get a clean, text-based view of all your cities in one column. See times and dates at a glance, and scroll to check future or past hours. It’s a no-fuss way to track the world’s clocks. FEELS LIKE A LUXURY TIMEPIECE We poured effort into details most people never notice — and we’re okay with that. Our users aren’t “most people.” Details include: — Real Moon Phases — Real Moon Rotation — Real Sunrise & Sunset — Advanced City Lights — Haptic Feedback * * * World Clock Master offers a premium subscription: Subscribe to get access to unlimited timezones, interactive widgets, customizations, and timely automatic updates of our timezone database of more than 160,000 locations and timezones. – Length of subscription: 1 month or 1 year – Payment will be charged to iTunes Account at confirmation of purchase – Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period – Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal – Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase – Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable – Terms & Conditions: https://timemaster.s3.amazonaws.com/Time-master-terms.pdf
Screenshots
Verdict
The clearest difference is monetization model: DayTime at free with in-app purchases against World Time Clock Master's subscription. DayTime also leads on iOS requirement (10.0 vs 17.0). World Time Clock Master's advantage is update cadence (fortnightly vs every 2 months) and review sentiment (67% vs 50%). On price, rating, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. DayTime sells 2 in-app purchases, starting at $0.49 per 6 months and World Time Clock Master sells 9 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.6 for DayTime against 4.6 for World Time Clock Master. That said, the two scores are not equally well evidenced: World Time Clock Master has 846 ratings behind it against 154, so its average is the more settled of the two. Written reviews are what separate them: 50% of DayTime's written reviews are positive against 67% of World Time Clock Master's.
DayTime ships an update every 2 months, World Time Clock Master fortnightly. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | DayTime | World Time Clock Master |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (154 ratings) | 4.6 (846 ratings) — better |
| Positive reviews | 50.0% of reviews | 66.7% of reviews — better |
| Number of ratings | 154 | 846 — better |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases — better | Subscription |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 236 MB |
| Age rating | 4+ | 4+ |
| Developer | Five Leaf Group LLC | Alex Komarov Inc. |
Customer experience
DayTime
World Time Clock Master
User reviews
DayTime
From 154 App Store ratingsWhat we love
- 👍 Great for time keeping & Sabbath
- 👍 Useful for early morning/late day runs
- 👍 Accurate for exact location
- 👍 Good for flight planning
- 👍 Simple graphical representation
Room to improve
- 🐛 Crashes when adding song alarm
- 🐛 Crashes after payment
- 🐛 App scrolls through future dates
- 🐛 Alarm sound not loud/long enough
- 🐛 Free version has poor features
World Time Clock Master
From 846 App Store ratingsWhat we love
- 🚀 Delightful scheduling assistance
- 👍 Feature improvement
- 👍 The best Timezone helper
- 👍 One of the best clocks around
- 👍 The Widget is so damn cool!
Room to improve
- 🐛 Problemas al actualizar
- 🐛 Sticky signup interface
- 🐛 Demo not enough
- 🔒 NOT A FREE APP
- 💰 Terrible monetisation model compared to previous app
Bugs and requests
DayTime
Reported bugs
13 issues- Alarm doesn't work
- App crashes when adding song as alarm
- App crashes after payment
- App scrolls through future dates uncontrollably
- Location chosen is inaccurate
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- Inaccurate longitude/latitude displayed
- Sunrise alarm crashes the app
- App closes immediately after payment
- Alarm sound issue (blank white screen)
- App no longer works on older iOS versions
- Virus warning after app update
- Location auto/manual doesn't work
- Alarms do not make sound
Requested features
8 requests- Widget option
- Change day start to Dawn
- Apple Watch version
- More sound alarm options
- Display set alarm on front page
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- Show time left since sunrise/first light
- Show time until astronomical twilight ends, midnight, next day first light
- Option to link to a playlist for alarm sound
World Time Clock Master
Reported bugs
4 issues- Lose all the registered locations after updating the app
- Sticky signup interface
- Widget doesn't work
- GMT and London currently have a 1 hour time difference between the two locations, but the app shows them the same time
Requested features
4 requests- Add the time difference in hours between the default location and other locations in both the widget and the app
- See my calendar events on the dial
- Make a paid tier that doesn't collect my data
- Add new event to a Calendar
In-app purchases
DayTime
- Subscribe to DayTime$0.496 Months
- All Features, Forever$1.99
World Time Clock Master
- 1 month2 variants$2.991 Month
- 3 months$3.993 Months
- 1 year3 Days trial$11.991 Year
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- 1 year$11.991 Year
- 1 year3 Days trial$19.991 Year
- Lifetime$29.99
- Lifetime$49.99
- Lifetime$79.99
Show 1 moreShow fewer
- Lifetime$99.99
Questions
Is DayTime free?
Is World Time Clock Master free?
Which has better reviews, DayTime or World Time Clock Master?
Do DayTime or World Time Clock Master have ads?
Which is updated more often, DayTime or World Time Clock Master?
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