Best Date Math Apps

Date Calendar Calculator

Calculate Calendar Date & Time

Free

This app helps you calculate date and time durations, add or subtract time from dates, and determine working days. It also converts between calendars and time zones, and estimates ovulation and pregnancy due dates. The design is simple and intuitive.

Count (Date Calculator)

by xiles

Free

Calculate the difference between two dates or add/subtract days from a specific date. Quickly find out how many days are left until an event or determine anniversary dates.

Date and Time Calculator Pro

by 山 钟

$0.99

Calculate the precise time difference between any two dates and times, down to the second. Easily determine future or past dates based on a specified duration. Ideal for tracking events, financial periods, or personal milestones.

AmberDate - Date Calculator

Track Days & Time Intervals

Free

Easily calculate future dates and time intervals with a clean, intuitive interface. Features smart shortcuts, a scroll wheel picker, and one-tap copying for quick results. Ideal for planning projects, travel, or visa timelines.

Time & Date Calculator

Perform calculations with time

Free

Calculate exact durations between times, including seconds, and account for time zone differences and DST. View results in various units and share them easily. Supports a wide year range.

Date Calculator, Days Calc

Time: Add, Between, Difference

Free

Easily solve date math problems with multiple calculation options. This intuitive app helps you find the difference between dates, add or subtract days, and calculate workdays. It's simple and user-friendly for all your date-related needs.

Date + Days Calculator

Add/Subtract days from date

Free

Easily calculate future or past dates by adding or subtracting a specified number of days from any given date. This tool offers a straightforward way to plan ahead or track past events with a user-friendly interface.

The Date Calculator PRO

Calculate days between dates

Free

Easily calculate the duration between two dates, with or without accounting for the time of day. You can also add or subtract various time units from a specific date. The results are automatically converted into multiple units for your convenience.

TrumpTime Date Calculator

Trump's time in office

Free

Calculate the duration of a presidential term, including elapsed days, remaining days, and future projections. It also functions as a general date calculator for any two dates or time periods.

Date Wheel date calculator

by Creative Algorithms

$4.99

This app calculates the time between two dates in various units, including months, weeks, days, and business days. It allows users to save calculations, set countdowns to important events, and track durations for both personal and professional use.

Date Calculator PW

No-nonsesne Date Calculator

Free

Easily calculate the difference between two dates or add/subtract time units to a specific date. This tool helps determine time spans, future dates, and past deadlines with straightforward operations.