Best Historical Date Converter Apps

0+ iOS apps curated and reviewed

4.7 avg rating
20 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our historical date converter list covers 0+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Compare top Historical Date Converter Apps (June 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Klok - Time Zone ConverterKlok - Time Zone ConverterFree4.7★ (3K)NoNoJul 2026
2BC to AD Calculator - BC YearBC to AD Calculator - BC YearFreeYesNoAug 2026
3Hijri Cal التقويم الهجريHijri Cal التقويم الهجريFree4.6★ (798)NoYesAug 2026
4Convert DateConvert DateFree4.8★ (12)NoYesAug 2026
5Unit Converter - Convert allUnit Converter - Convert allFree4.6★ (13K)YesYesAug 2026
6Ethiopian Calendar & ConverterEthiopian Calendar & ConverterFree4.8★ (4K)NoNoAug 2026
7Metric Conversion toolMetric Conversion toolFree4.8★ (15K)NoNoAug 2026
8Date Converter: CalendarsDate Converter: CalendarsFree4.4★ (101)YesYesAug 2026

Top Picks for Historical Date Converter

Klok - Time Zone Converter#1

Klok - Time Zone Converter by Buuuk Private Limited

Editor's Choice
📊 Productivity
4.7😞(3K ratings)
Free
Klok - Time Zone Converter screenshot 1
Klok - Time Zone Converter screenshot 2
Klok - Time Zone Converter screenshot 3
Klok - Time Zone Converter screenshot 4

Easily convert and track time across multiple time zones with a convenient widget. Access it from anywhere, even when your phone is locked, to quickly see and adjust to different time zones.

What We Love

  • 👍 Simple and efficient app
  • 🚀 Convenient widget for quick time checks
  • 💡 Useful for coordinating across time zones

Room to Improve

  • 🐛 Widget no longer works with latest iOS updates
  • 🚫 App no longer functional on newer iOS versions
  • 🔍 City abbreviations not always intuitive
Hijri Cal التقويم الهجري#3

Hijri Cal التقويم الهجري by Ramy Gamal

Hijri Converter, Simplified!
Worth Considering
📊 Productivity
4.6😊(798 ratings)
FreeIn-App Purchases
Hijri Cal التقويم الهجري screenshot 1
Hijri Cal التقويم الهجري screenshot 2
Hijri Cal التقويم الهجري screenshot 3
Hijri Cal التقويم الهجري screenshot 4
Hijri Cal التقويم الهجري screenshot 5

Easily convert between Gregorian and Hijri dates with this utility app. It offers a widget for quick conversions, time travel calculations between dates, and support for Islamic events. Users can also adjust the Hijri date and receive daily reminders.

What We Love

  • 👍 Beautifully designed app
  • 🚀 Many nice options
  • 🚀 Useful and recommended
  • 👍 Practical and helpful

Room to Improve

  • 🐛 Dates not fully accurate compared to Gregorian calendar
  • 🔒 Certain features require paid subscription
  • 🐛 Widget not working properly after update

More Historical Date Converter apps to explore

4
Convert Date
Convert Date
Convert Date
by Fahad Alrashidi
Free

Easily convert dates between various calendar systems including Islamic, Gregorian, Hebrew, and more. Calculate age and access a history of your conversions. Share results as images.

Multiple calendar conversionsAge calculationConversion history
🔧 Utilities
(12)
free with in-app purchases
5
Unit Converter - Convert all
Unit Converter - Convert all
Unit Converter - Convert all
Measurements & Calculations
Free

Easily convert between various units of measurement, including currencies, temperature, length, and weight. This intuitive tool provides real-time currency exchange rates and a comprehensive list of conversions for everyday use.

Real-time currency conversionsExtensive unit categories (weight, temp, length, volume, etc.)Simple and intuitive interface
✈️ Travel
(13K)
free with in-app purchases
6
Ethiopian Calendar & Converter
Ethiopian Calendar & Converter
Ethiopian Calendar & Converter
Holidays, Reminders, Prayers
Free

This app provides a comprehensive Ethiopian calendar, including Orthodox holidays, fasting days, and national events. It features a date converter, time zone adjustments, and reminders for birthdays and significant dates. Additional utilities like a calculator, notes, and world clock enhance its functionality.

Ethiopian Orthodox holidays and fasting daysDate and time converter (Ethiopian to local/vice versa)Birthday and event reminders
📊 Productivity
(4K)
free
7
Metric Conversion tool
Metric Conversion tool
Metric Conversion tool
Unit and currency converter
Free

This app provides a comprehensive unit and currency converter with a user-friendly interface. It offers offline functionality, supports over 30,000 unit conversions, and includes more than 160 currencies with live exchange rates. Users can save favorite conversions and get precise results.

Offline functionalityOver 30,000 unit conversions160+ currencies with live rates
🔍 Reference
(15K)
free
8
Date Converter: Calendars
Date Converter: Calendars
Date Converter: Calendars
Convert dates across calendars
Free

Easily convert dates between various calendar systems like Gregorian, Islamic, Coptic, and Hebrew. Features authentic month names and a modern, customizable interface for researchers, historians, and religious observers.

Convert between Gregorian, Islamic, Coptic, Um Al Qura, Hebrew, and Solar Hijri calendarsAuthentic month names for each calendar systemIntuitive, modern Material Design 3 interface
🔧 Utilities
(101)
free with in-app purchases
9
Julian Date
Julian Date
Julian Date
by Jevon Charles
Free

Convert between standard calendar dates and Julian dates. Supports 5-digit and full Julian date formats, including time. Also allows conversion from Julian dates back to calendar dates.

5 Digit Julian Date conversionFull Julian Date conversionCalendar Date to Julian Date
📊 Productivity
(2.7K)
paid
10
Unit Converter: Mila's Tools
Unit Converter: Mila's Tools
Unit Converter: Mila's Tools
Conversion Calculator PLUS
Free

This app offers a comprehensive unit conversion tool with over 300 units across 27 categories. It supports compound units, date calculations, and conversions between various number systems, including historical units. The interface is designed for ease of use with smart keyboards and customizable display options.

27 conversion categories300+ unitsCompound unit support
🔧 Utilities
(1.4K)
free with in-app purchases
11
Date Converter (تبدیل تاریخ)
Date Converter (تبدیل تاریخ)
Date Converter (تبدیل تاریخ)
Gregorian, Shamsi, Qamari
Free

Easily convert dates between Gregorian, Shamsi, and Qamari calendars. This app displays important occasions, supports local languages, and offers offline functionality. Share dates and receive notifications.

Gregorian, Shamsi, Qamari date conversionDisplays occasionsLocal language support
🔧 Utilities
(2)
free
12
World Clock Pro: Convert Time
World Clock Pro: Convert Time
World Clock Pro: Convert Time
Timezone Converter & Scheduler
Free

Easily track and convert time across multiple global time zones. Schedule events, share accurate times instantly, and access a vast database of cities and time zones. Ideal for international communication and planning.

Universal clock accessEffortless time conversionSchedule calendar events
🔧 Utilities
(1.3K)
subscription
13
Convert Any Unit Lite
Convert Any Unit Lite
Convert Any Unit Lite
Units & Currency Converter
Free

Quickly convert between thousands of units with an intelligent search and autocomplete feature. This app offers a streamlined interface, an integrated calculator, and the ability to save favorite conversions. It supports over 6,400 units across 51 categories, making it a comprehensive tool for all your conversion needs.

Intelligent unit search with autocompleteAutomatic category selectionIntegrated calculator
✈️ Travel
(48K)
ad-supported
14
Jewish Calendar & Converter
Jewish Calendar & Converter
Jewish Calendar & Converter
Hebrew Date-Converter Holidays
Free

This app converts between Gregorian and Hebrew calendar dates. It offers reminders for holidays and birthdays, along with useful utilities like a calculator and world clock. A to-do list and historical information are also included.

Hebrew to Gregorian date conversionGregorian to Hebrew date conversionHoliday reminders
📊 Productivity
(195)
free
15
World Time Clock Master
World Time Clock Master
World Time Clock Master
Zulu Time Converter & Widget
Free

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 displayInteractive time conversionEvent scheduling
🔧 Utilities
(816)
subscription
16
Military Time Converter +
Military Time Converter +
Military Time Converter +
24 Hour Clock App & Widget
Free

Easily convert between 12-hour (AM/PM) and 24-hour military time. This app offers instant conversions, local time display, time zone support, and convenient widgets. Learn and practice military time with a built-in chart.

Instant 12/24 hour conversionLocal time displayTime zone and UTC support
🔧 Utilities
(312)
free with in-app purchases
17
Easy Date Calculator, Keyboard
Easy Date Calculator, Keyboard
Easy Date Calculator, Keyboard
Easily calculate target date
Free

Calculate future or past dates from a specific start point, or get the current date and time. Includes a custom keyboard for fast date entry in other applications and supports various date formats.

Calculate target datesGet current date and timeCustom keyboard for date entry
🔧 Utilities
(15)
free
18
Roozegar - روزگار
Roozegar - روزگار
Roozegar - روزگار
Roozegar, Persian Calendar
Free

This app provides a comprehensive Persian (Jalali) calendar for iPhone, iPad, and Apple Watch. It includes date conversion tools and multiple widgets for easy access to your schedule. You can also log events directly into your system calendar.

Comprehensive Persian (Jalali) calendarDate conversion toolMultiple widgets
🔧 Utilities
(10K)
free
19
Ethiopian Calendar + Converter
Ethiopian Calendar + Converter
Ethiopian Calendar + Converter
Holidays, Fasting, Amharic
Free

This app provides an accurate and user-friendly Ethiopian calendar with event reminders and a dual-calendar date converter. It supports multiple languages and customizable themes for a personalized experience.

Dual calendar systemAccurate date converterEvent and reminder saving
📊 Productivity
(15)
free
20
Hijri Dates Converter
Hijri Dates Converter
Hijri Dates Converter
by Adeeb Bukhari
Free

Easily convert between Hijri and Gregorian calendars, calculate exact ages, and track upcoming events. Get accurate date calculations and event countdowns with a simple interface.

Hijri and Gregorian date conversionExact age calculationEvent countdowns
🌟 Lifestyle
(5)
ad-supported

FAQ about Historical Date Converter

What are the best historical date converter apps for iPhone?
Klok - Time Zone Converter tops our historical date converter apps ranking as of June 2026, with a 4.7-star average from 3K App Store ratings, and it's free to download.
Yes — 20 of the top historical date converter apps we rank are free to download, including Klok - Time Zone Converter and BC to AD Calculator - BC Year.
Klok - Time Zone Converter has no ads and has no in-app purchases, according to its App Store listing as of June 2026.
Klok is a time zone converter widget that allows you to quickly glance at and convert times across different time zones. It's designed to help you stay on time with people you care about who are in different parts of the world.
You can add the Klok widget to your device. By swiping down from anywhere, even when your phone is locked, you can access the widget. Tapping on a specific time zone within the widget will instantly convert the time across all your added time zones.