Rating4.4 ★ / 5
Size1.31 MB
OS RequireAndroid 4.0.x - Ice Cream Sandwich
Author's NotesTime Elapsed / Time Countdown. Live time calculator. Time between two dates


Time Elapsed / Time Countdown Time Calculator

Shows Time and Date in the right place value position.

Use Time Calculator to calculate the time subtraction between 2 dates:
You can fix a date in the past and subtract it from the present time: You get the elapsed time.
You can fix a date in the future and subtract the present time: You get the countdown to the fixed date.
(Light gray dates are in the past; Light green dates are in the future)

Not available for dates earlier than 1582.
(Due to the Gregorian Calendar)

Stopwatch and a countdown counter.

Android version of:

A work in collaboration and for MathCats in 2002
(Wendy Petti and Maurici Carbó)

Practical applications proposed by users:
-. Useful to calculate demurrage. (
-. Useful for calculating maintenance times
-. To calculate amount of pills of a medical treatment.
-. Calculate the number of days, or hours, or minutes, or seconds, remaining until retirement.
-. How old am I?
-. How old are you?
-. How many months, or weeks, or days, or hours, or minutes, or seconds are there in 1000 years?

-. Estimate the number of heartbeats throughout life at this time.
- multiplying lived minutes by a number between 60 and 100 for human beings.
- minutes, multiplied by 500 in the case of mice.
- minutes, multiplied by 28 in the case of elephants.
- minutes, multiplied by 6 in the case of the giant Galapagos tortoise.

-. Estimate the number of breaths made ​​throughout life at this time: (for human beings)
- birth to 6 weeks: 30–60 breaths per minute
- 6 months: 25–40 breaths per minute
- 3 years: 20–30 breaths per minute
- 6 years: 18–25 breaths per minute
- 10 years: 15–20 breaths per minute
- adults: 12–20 breaths per minute

Date and time difference calculator app:
Developed by:
In collaboration with
Nummolt Blog: Mathematical engine mill:

Nummolt Apps: 'Not montessori per se, but montessori-like'
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Time Calculator APK - v1.3.0

Updated: 2019-12-01

What's new

v.1.3.0 Fixed last improvement. (Dec 2018) + Apple pie update.
v.1.2.0 The app saves last configuration. (After suggestion from user: Tony Dean).
v.1.1.5 added auto reference
v.1.1.4 added values 2
v.1.1.3 added values
v.1.1.2 added layouts
v.1.1.1 added French version and AndroidTV.
v.1.1.0 new version. WebView. added version in catalan and castilian (spanish - Spain)
v.1.0.4 updated to cordova 3.6.3 due to the google apps developer request
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129 Total
5★ 86
4★ 28
3★ 6
2★ 3
1 ★ 6
1.3.0 (13)2019-12-01
1.2.0 (12)2016-01-10