Date Calculator Tools for Deadlines and Time Spans | 4
Update: Sep 7, 2026 · 175 apps reviewed
Date calculator tools make it easy to count days between events, add or subtract time, and map out deadlines without manual spreadsheet work. They are especially useful for project planning, legal timelines, travel schedules, and any task where an exact date shift matters more than a rough estimate. Good tools handle business days, weekends, holidays, and recurring intervals cleanly, while the best ones keep the interface fast enough for quick checks during work. When choosing one, look for clarity in date formats, support for custom rules, and results that are easy to copy or share.
Top programs about Date Calculator
- 4.5
ISO8601 to Local datetime converter is a free browser add-on developed by CocoaCaa. Available for Chrome, this program allows users to easily convert ISO8601…
- 4.9
Carbon Dating is a highly useful Android application developed by LD apps. This free utility and tools program allows users to calculate the date…
- 4
Date Calculator PW is a free Android application offered by Pluribus Web LLC that enables users to perform date and time calculations by adding…
- Free Download for iPhone
Other platforms
4This extension is a utility that displays the number of days since a given date. It allows you to change the date by right-clicking…
- 4
Date Converter is a simple and user-friendly app designed to convert between three calendar types: Solar, Hijri (Islamic), and Gregorian. With this app, users…
- 4.4
Roman Dates is an iPhone application that helps you convert regular dates to Roman numerals. Whether you need to write a special date in…
- 4
Date Converter is an Android application developed by Hasan Kassem, which allows users to convert dates between HijriIslamic and Gregorian calendars. This simple but…
- 4.7
Age Calculator is a free Chrome add-on developed by Vishal Singhaniya. As the name suggests, it allows users to calculate their exact age down…
