LumaClock vs OffTime

LumaClock turns your iPhone or iPad into an immersive full-screen digital clock. Explore 30 carefully crafted visual styles, from clean graphic faces and animated particles to aurora-inspired scenes and star fields. Create a clock that fits your space: • Choose 12-hour or 24-hour time • Show hours and minutes, or include seconds • Show or hide the date and battery level • Switch color palettes on supported styles • Use portrait or landscape orientation on iPhone and iPad • Keep the display awake for desk, bedside, studio, or ambient use • Turn the optional ticking sound on or off • Use the app in English or Simplified Chinese Tap the clock face to hide the controls and enjoy an unobstructed display. Your selected style, color choices, and display preferences are saved on your device. Privacy by design: • No account or sign-in • No advertising or third-party analytics • Clock rendering and preferences stay on your device • An internet connection is not required for normal clock display A selection of clock styles is available without purchasing Pro. Lifetime Pro is available as a one-time, non-consumable in-app purchase that unlocks all Pro styles, additional color choices, and future Pro style releases. There is no subscription or recurring charge.

When should an international meeting start? Will it be daytime or midnight when you land? World Clock helps you see local times, working hours and the best time to connect. Great for cross-border operations, international trade, remote work, study abroad, global families and business travel. [World Clock] Add the cities you care about to check live local time, time differences, working hours and contact windows. Daylight saving time is calculated automatically, and you can reorder cities by drag and drop. [Working Hours & Reminders] Set custom working hours for each city (9:00–18:00 by default), then quickly see overlapping hours between you and the other side. Add reminders for specific periods so you never miss the best window for international communication. [Time Zone Converter] Convert dates and times between any cities in seconds. Ideal for flights, meetings and business trips. Share conversion results with one tap. [Meeting Slot Recommendations] Select participating cities and get meeting times that fit everyone’s working hours. Fully overlapping slots appear first, while non-working and quiet hours are clearly marked. [Widgets] Put your world clock on the Home Screen, or on the iPhone Lock Screen, to check multiple city times without opening the app. [Offline & Private] Core features work completely offline, including in Airplane Mode, with no data upload and no third-party SDKs. Import and export city lists to migrate between devices.