# Date & Time Calculator(9 in 1) — user reviews > 404 indexed App Store user reviews of Date & Time Calculator(9 in 1) by Thomas Tsopanakis, rated 4.70/5 from 1,911 ratings. - Source: https://appshunter.io/ios/app/date-and-time-calculator9-in-1/id536930649/reviews - App overview in markdown: https://appshunter.io/ios/app/date-and-time-calculator9-in-1/id536930649.md - Rating breakdown: 5★ 1,522 · 4★ 293 · 3★ 49 · 2★ 15 · 1★ 32 ## Newest reviews (18 of 404) ### 5/5 — ⭐️⭐️⭐️⭐️⭐️ *2022-10-19, version 3.0.2* This is what I have been looking for for a long time! The most useful date calculator. Thanks👍🏼 ### 5/5 — Superb *2022-10-08, version 3.0.2* Brilliantly thought ### 5/5 — Super helpful and reliable *2022-03-16, version 3.0.2* Super helpful and reliable. ### 5/5 — Great app *2022-03-05, version 3.0.2* I use it for A Lot of planning. Havent gad a glitch yet! ### 5/5 — Great Calculator *2021-11-15, version 3.0.2* I looked at all kinds of apps that mostly worked like time clocks for payroll. I just wanted a simple calculator. This is perfect. Thank you! I will use the heck out of this app ### 5/5 — Good Stuff *2021-11-07, version 3.0.2* In my work I need to do a lot of basic time calculations. Rather than count days on a calendar I was using a spreadsheet. This useful app makes it quick and easy on the phone. Thanks! ### 5/5 — Pratique et complet *2021-10-26* Go on ;.)Très pratique pour manipuler des dates ### 5/5 — Great tool to have for busines. *2021-09-29, version 3.0.2* I have multiple people travel for my company and I have to schedule appointments for them. This app help a lot! ### 5/5 — MUITO BOM *2021-09-13* Aplicativo ótimo pra usar nas necessidades- prático, rápido e intuitivo!!! Parabéns ### 5/5 — Great App *2021-08-10, version 3.0.2* Excellent app enjoy the options ### 5/5 — Works great for criminal defense attorneys *2021-05-07, version 3.0.2* This is a great app to figure out time in custody for pleas or calculating custody time at sentencing. I recommend it to all who need this app for a living. ### 5/5 — Great tool - very useful. *2021-03-11, version 3.0.2* Great job. ### 5/5 — Easy to operate, great product *2021-03-06, version 3.0.2* Recommended 👍 ### 5/5 — Only one I need *2021-02-28* I’ve been using this app for years. I mean I do t know how long. 6 or 7 at least. It was free and the developer has this pop up asking for a review and I always ignore it but this time I thought, man, this has helped me so many times I really owe it to them. I am a dairy and pork farmer. I use this app to estimate breeding and gestational periods. Using the knowledge of animal breeding and days to labor you can calculate time periods that you should be expecting them to breed or drop babies. ### 5/5 — Date & Time calculations *2020-11-26, version 3.0.2* A very useful set of utilities clearly presented and easy to use. ### 5/5 — Excelent! *2020-11-25* This app is usefull and very good. ### 5/5 — very helpful!! *2020-10-13, version 3.0.2* i am horrible at math especially with time.. so this app is a life saver<3 ### 5/5 — whoops *2020-10-02, version 3.0.2* i got this on accident but i needed an app to help me figure out distance between time for school so i just kept it ## Most critical reviews (10 lowest-rated) ### 1/5 — It doesn’t even work *2020-12-08, version 3.0.2* I’m asking the app to subtract hrs and mins from another set of hrs and mins and it’s giving me a completely bogus answer. I want my 99 cents back. ### 1/5 — Boggle *2020-10-21, version 3.0.2* Time zones without Seattle, Portland or San Francisco? No Iceland? You have McMurdo Station, but you left out an entire country? The mind boggles... I don’t use software that makes my poor little mind boggle. Sorry. ### 1/5 — Can’t specify what country you are in *2020-01-13, version 3.0.2* Can’t specify what country for it to subtract national holidays in the working days calculation. ### 1/5 — Doesn’t work *2019-08-12, version 3.0.2* Doesn’t work ### 1/5 — Does not work *2019-06-26, version 3.0.2* 31 minutes 10 seconds divided by 2 should not result in 15.5 minutes 5 seconds but 15 minutes 35 seconds. A normal calculator could have given me the first answer. This is supposed to be a time calculator. It simply does not work. ### 1/5 — Needs work *2016-06-09, version 2.1.1* Cannot calculate time travel into miles or kms ### 1/5 — Get the same functionality for free elsewhere *2016-01-10, version 2.1.1* Every ten interactions it begs you for a review. You get the option to choose 'Now' or 'Later'. This is a paid-for not a free app. You don't treat your users with contempt by forcing them to leave reviews or continue to be nagged! Now I'm writing the review will I continue to be nagged? You get the same functionality for free elsewhere. And you're not plagued by the student developer. I'd not recommend downloading this app. ### 1/5 — NOT for Pilots! DON’T buy it until it is fixed. *2015-06-10* This app is not for pilots. We need to add multiple flights together and produce total hours and minutes. This app will not do this. If you want to add three series of flights together such as 21:48 + 18:33 + 9:19 = 49:40. This app will only add two of these trips together. When you do this you get a product in DAYS, Hours & Minutes. If you want to add three times you need to write down the product of the first two times then input this time and add the third time. The product of these times is again produced in DAYS, Hours & Minutes. This is totally in adequate for pilots who are trying to add total hours and minutes together and DON’T want them converted to days, hours & minutes. The input method is clumsy too. In order to input 21:48 + 18:33 you need to first select the hours field then input 21, then select the minutes field and input 48, then select the next hours field and input 18 and finally select another minutes field and input 33. When all of that is done you get a product that is in DAYS, hours and minutes and hopefully you don’t need to add any other times because the process will need to start all over again. This app needs to have a “lite” version so you can see the manner in which the app works before you commit to purchasing it. ### 1/5 — Glad It Was Free - Now Deleted *2014-09-06* 9 options! Age Calculator - I know how old I am. Time Zone - Scrolling through what seems like hundreds of options, crazy. Why not have a predictive box to type in. Time Travel - Another useless option when most people will have some sort of map option on their phone anyway. And it's so basic, distance remaining, input speed, get answer. Wow, that's innovative. ### 1/5 — Inexact *2012-11-12* Les tests de calcul d'âge indiquent des résultats erronés ! Le calcul de différence entre 2 horaires est étalonné en intervalles de 5 minutes ! Je retire l'application. ## Most praised reviews (10 highest-rated) ### 5/5 — Useful *2024-07-16, version 3.0.2* I have had this app for awhile. It continues to be quite useful for a variety of time related tasks and it’s easy to use. ### 5/5 — Great App *2023-08-31, version 3.0.2* Multi functional, converts to military time, time in another country, and age other features I have yet to explore. The cities in countries could be improved but over all useful. ie United States instead of America ### 5/5 — Nice *2023-08-14, version 3.0.2* Awesome ### 5/5 — Bravo! *2023-05-09, version 3.0.2* A nice app that works well and fills a very useful niche. Keep up the good work! ### 5/5 — Time *2023-05-09, version 3.0.2* Great time saver( no pun intended) works great for my monthly reports. This is an awesome program for time calculating. ### 5/5 — Excellent *2023-05-08* Good app. Works perfect. Good luck ### 5/5 — Perfect Fish Quarantine App *2023-02-19, version 3.0.2* Perfect app for quarantining fish…. The tank transfer method requires times by the hour. This easily calculates the next time and even lets you add it to your calendar. ### 5/5 — Très pratique et utilisé régulièrement *2022-12-09* Voic un convertisseur très pratique que j’utilise régulièrement pour convertir des données de temps. Bravo! ### 5/5 — Truck Driver *2022-11-16, version 3.0.2* I use this app every day figuring out my hours for the day and for the week. Very easy to use. Great job! ### 5/5 — Well done! *2022-11-08, version 3.0.2* I am a big fan of time based apps and this one is right on. Thanks! --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*