Mariner Time: Clock & Dates

Mariner Time brings a classic ship's chronometer to your phone, with seven practical time and date tools in one calm, offline app.

MEETING PLANNER
Planning a call across time zones? Pick a day and your working hours, and Mariner Time shows every city side by side, hour by hour. Hours that suit everyone are highlighted, so you can find a good meeting time in seconds. Half-hour time zones and daylight saving are handled for you.

WORLD CLOCK WITH SUNRISE AND SUNSET
Keep the cities you care about in one list, each with its own small analog dial. See at a glance whether it is day or night there, today's sunrise and sunset times, and how many hours ahead or behind you they are.

TIME ZONE CONVERTER
Choose a date and time in one city and read it in another. Swap the two cities with one tap.

DATE CALCULATOR
Count the days, weeks and months between two dates, or add and subtract days, weeks, months or years from any date.

AGE CALCULATOR
Find your exact age in years, months and days, the weekday you were born, and how many days are left until your next birthday.

COUNTDOWNS
Add trips, exams, weddings or birthdays and watch the days, hours and seconds tick down.

WORK DAYS
Count business days between two dates. Choose your own weekend days and leave out holidays or days off.

DESIGNED TO BE CALM
Warm teak and brass colours, a clear chronometer dial on the home screen, and a 12 or 24-hour clock setting.

PRIVATE BY DESIGN
Mariner Time works fully offline. It needs no account, has no ads and sends no data anywhere. Your cities and countdowns stay on your phone.