Jim's Date Calculator

4.8
20 reviews
100+
Downloads
Content rating
Everyone
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About this app

** A true project managers date calculator!! **

** It can be used to calculate days, weeks, months, and years in elapsed, business, or 9/80 days from one day to another.

** Quickly calculate the number of days between two dates.
- Counts elapsed days
(counts all days Mon/Tue/Wed/Thur/Fri/Sat/Sun)
- Counts standard/business working days
(counts only Mon/Tue/Wed/Thur/Fri)
- Counts 9/80 work days too!
(counts only Mon/Tue/Wed/Thur & skips every other Friday)

** Count backward dates (all modes)
** Compute days, weeks, months, and years (e-Days & Std-Days)

** Custom date selection user interface for FAST date selection (pick a date just like on your calendar) see screen shots below. If you like the old way, it's supported too! Just tap the "Go To" Button and enter (see 5th screen shot).

** Be sure to watch the demo video!

** Calculations line up and work just like desktop scheduling programs but quickly and in your phone!!

** Network Access is for Android Market License Verification and to allow the application to send you to my website for "Support & Info" in the "About" Menu Button.

---Things you should know---
• App developer doesn't participate in the purchase and download process, if you have problems with credit card authorization, charge, double charge, download failures, we have no way to help you, you'll need to check the Google technical help forum.

• Update is always free, Google controls charging and it WILL NOT charge for update.
Updated on
Feb 27, 2016

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
4.8
20 reviews
Renee M
March 6, 2021
I tried several other apps before choosing this one, and I like it the most. I need something that would save the beginning date without my having to re-enter it for every calculation. It also has a feature of excluding or including the start date, which I need. The interface is very easy to use. I love not having ads! Thank you Jim!
1 person found this review helpful
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A Google user
August 6, 2019
I'm a Project Manager. I need to know the number of working weeks and days to the close of the last working day. No other app appears to do this without much jiggery pokery. The only downside is that the black/white interface makes my eyes hurt a bit.
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JimsJump
September 13, 2019
Thank you for your review! App has two color settings, white background, black text (for when you are out in full sun); and a 2nd setting with black background, white text (nowadays called dark mode) for meetings/low light to save your eyes. Go to settings -> Color Scheme to select, note app will restart.
A Google user
September 13, 2019
Best date calculator for project management.
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JimsJump
September 13, 2019
Thank you very much for your 5-star review!!!

What's new

Version 1.5.3 Update:
- Corrected Leap Year bug in which Feb 29 could not be selected as a valid start or end date.
- Corrected ISO Date format to show zeros on days or months less than 10, aka 2016-02-09 vs 2016-2-9.
- see change log here: http://goo.gl/qXyEq