# Can I make my iPhone clock display decimal minutes?

**URL:** <https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767>\
**Category:** Factual Questions\
**Created:** [April 17, 2023, 2:19am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767 "2023-04-17T02:19:32Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\
**Post date:** [April 17, 2023, 2:19am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/1 "2023-04-17T02:19:32Z")

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When I clock in at work (10:30 pm), the time clock reads 2250. Similarly, when it’s a quarter to eleven, it will display 2275.

Can I program my iPhone’s clock feature to display in this format?

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**Author:** ![Dr\_Paprika](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr_paprika/32/3042_2.png) [@Dr\_Paprika](https://boards.straightdope.com/u/Dr_Paprika)\
**Post date:** [April 17, 2023, 2:35am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/2 "2023-04-17T02:35:13Z")

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I hope not. Why would you want that?

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**Author:** ![Monty](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/monty/32/47_2.png) [@Monty](https://boards.straightdope.com/u/Monty)\
**Post date:** [April 17, 2023, 2:58am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/3 "2023-04-17T02:58:09Z")

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Should’t you be able to set the display for 24 hour clock in the settings?

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**Author:** ![hajario](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hajario/32/171_2.png) [@hajario](https://boards.straightdope.com/u/hajario)\
**Post date:** [April 17, 2023, 3:00am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/4 "2023-04-17T03:00:40Z")

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There’s probably an ap.

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**Author:** ![running\_coach](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/running_coach/32/15836_2.png) [@running\_coach](https://boards.straightdope.com/u/running_coach)\
**Post date:** [April 17, 2023, 3:03am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/5 "2023-04-17T03:03:29Z")

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> [@hajario](#):
>
> There’s probably an ap. -

So far, all I’ve found is full decimal time-10 hours-100 minutes-100 seconds.

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**Author:** ![BippityBoppityBoo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bippityboppityboo/32/5745_2.png) [@BippityBoppityBoo](https://boards.straightdope.com/u/BippityBoppityBoo)\
**Post date:** [April 17, 2023, 3:27am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/6 "2023-04-17T03:27:50Z")

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From [makeuseof.com](http://makeuseof.com):

## Use a 24-Hour Clock on Your iPhone Lock Screen

While the steps above help customize how your clock looks, you can also make it appear different or more preferable by switching to the 24-hour time format. To do this, follow these steps:

1. Go to **Settings \> General** on your iPhone.
2. Now, tap on **Date & Time**.
3. Here, simply toggle on **24-Hour**  **Time** , and you’re set.

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<div class="post-metadata">

**Author:** ![running\_coach](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/running_coach/32/15836_2.png) [@running\_coach](https://boards.straightdope.com/u/running_coach)\
**Post date:** [April 17, 2023, 3:31am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/7 "2023-04-17T03:31:11Z")

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Look at the OP’s example. The hours are 24 format but the minutes are expressed as a 00-99 decimal (10:30pm reads out as 2250) which is weird as hell.

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**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\
**Post date:** [April 17, 2023, 4:25am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/8 "2023-04-17T04:25:59Z")

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> [@Dr\_Paprika](#):
>
> I hope not. Why would you want that?

When I clock out for lunch, I get fifty clicks (half an hour). I CAN calculate the minutes and set an alarm for twenty-seven minutes (giving me three minutes to get back to the time clock), but it would be more straightforward to just set the alarm for forty-five clicks.

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**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\
**Post date:** [April 17, 2023, 4:28am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/9 "2023-04-17T04:28:25Z")

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> [@running\_coach](#):
>
> > [@hajario](#):
> >
> > There’s probably an ap. -
> 
> So far, all I’ve found is full decimal time-10 hours-100 minutes-100 seconds.

Ew. NOT adequate to my needs.

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**Author:** ![zbuzz](https://avatars.discourse-cdn.com/v4/letter/z/e19b73/32.png) [@zbuzz](https://boards.straightdope.com/u/zbuzz)\
**Post date:** [April 17, 2023, 5:39am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/10 "2023-04-17T05:39:45Z")

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> [@kaylasdad99](#):
>
> When I clock out for lunch, I get fifty clicks

Where do you work that they use decimal time?

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**Author:** ![Bag\_of\_Mostly\_Water](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/bag_of_mostly_water/32/1029_2.png) [@Bag\_of\_Mostly\_Water](https://boards.straightdope.com/u/Bag_of_Mostly_Water)\
**Post date:** [April 17, 2023, 6:11am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/11 "2023-04-17T06:11:12Z")

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I’m an iOS developer and took this as a challenge. I have the display working and need to add an alarm. Give me a few days and I can release an app that does this. I’ll post when I have a beta that you can try.

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**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\
**Post date:** [April 17, 2023, 9:33am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/12 "2023-04-17T09:33:45Z")

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> [@zbuzz](#):
>
> > [@kaylasdad99](#):
> >
> > When I clock out for lunch, I get fifty clicks
> 
> Where do you work that they use decimal time?

USPS.

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**Author:** ![kaylasdad99](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kaylasdad99/32/3398_2.png) [@kaylasdad99](https://boards.straightdope.com/u/kaylasdad99)\
**Post date:** [April 17, 2023, 10:20am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/13 "2023-04-17T10:20:30Z")

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> [@Bag\_of\_Mostly\_Water](#):
>
> I’m an iOS developer and took this as a challenge. I have the display working and need to add an alarm. Give me a few days and I can release an app that does this. I’ll post when I have a beta that you can try.

Thanks very much.

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<div class="post-metadata">

**Author:** ![zbuzz](https://avatars.discourse-cdn.com/v4/letter/z/e19b73/32.png) [@zbuzz](https://boards.straightdope.com/u/zbuzz)\
**Post date:** [April 17, 2023, 10:40am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/14 "2023-04-17T10:40:54Z")

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FWIW, I found two apps for iPhone.

> **[‎My Swing Log](https://apps.apple.com/us/app/my-swing-log/id6443971801)**
>
> ‎Are you a mail carrier? Frustrated by needing to do decimal hours conversion by hand? Want an easy way to track your swings? Let My Swing Log help. My Swing Log gives you an easy way to track your swings. Just tap “Start Swing” when your swing...

> **[‎DeciTime](https://apps.apple.com/us/app/decitime/id336472044)**
>
> ‎DeciTime - Time for the 21st century
> 
> DeciTime stands for "decimal time", i.e. a representation of the time of day based on decimal units.
> 
> Since the old times we are used to the somewhat odd counting with 24/60/60 - the time of day has 24 hours of...

My Swing Log is 3 bucks, but it looks a lot more polished than DeciTime which is free.

Looking forward to seeing Bag\_Of\_Mostly\_Water’s app.

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**Author:** ![Dead\_Cat](https://avatars.discourse-cdn.com/v4/letter/d/9fc29f/32.png) [@Dead\_Cat](https://boards.straightdope.com/u/Dead_Cat)\
**Post date:** [April 17, 2023, 11:17am UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/15 "2023-04-17T11:17:02Z")

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I’m profoundly baffled - in what way is it easier to set an alarm for 45 units rather than 27 units? I could sort of understand it if your break time was (say) 30 clicks, meaning you would have to convert that into minutes with a slightly trickier calculation (let’s see, 30% of 60 minutes, so 18 minutes - right). But I assume your employer has recognised that issue by ensuring breaks are in increments of 50 (or possibly 25) ‘clicks’, obviating the need for any calculation - all you need to remember (and evidently, you do) is that 50 clicks = 30 minutes.

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**Author:** ![doreen](https://avatars.discourse-cdn.com/v4/letter/d/858c86/32.png) [@doreen](https://boards.straightdope.com/u/doreen)\
**Post date:** [April 17, 2023, 12:42pm UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/16 "2023-04-17T12:42:50Z")

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It’s not that weird. I’ve seen it used as long as 40 years ago but I’ve never seen it used for anything other than timeclocks. The idea is to make paying for minutes more precise and also easier to calculate - it’s much easier to determine how to pay someone for working 8.3 hours than to determine how much to pay them for working 8 hours and 23 minutes. This is why most timekeeping systems that use 60 minute hours round to a quarter hour in one way or another. Either punching in at 8:06 rounds to 8:00 and 8:08 rounds to 8:15 or working 8 hours and five minutes gets you paid for 8 hours while 8 hours and ten minutes get you paid for 8 hours and fifteen minutes.

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**Author:** ![Saint\_Cad](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/saint_cad/32/18907_2.png) [@Saint\_Cad](https://boards.straightdope.com/u/Saint_Cad)\
**Post date:** [April 17, 2023, 4:30pm UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/17 "2023-04-17T16:30:53Z")

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God I hope there’s not an app for that. Do you know how many times I had to teach middle schoolers that 2 hours 30 minutes is NOT 2.30 hours. Way too many times.

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**Author:** ![N9IWP](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/n9iwp/32/3154_2.png) [@N9IWP](https://boards.straightdope.com/u/N9IWP)\
**Post date:** [April 17, 2023, 5:11pm UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/18 "2023-04-17T17:11:37Z")

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When I worked at a restaurant the time clock did tenths of an hour (8.0 to 9.9) – we got a new time clock that did minutes but then the payroll person had to do the conversion so we went back to a tenths of an hour time clock.  
We would sometimes punch the back of our time cards to be sure it had reached .5 or whatever.

Brian

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**Author:** ![Dr\_Paprika](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr_paprika/32/3042_2.png) [@Dr\_Paprika](https://boards.straightdope.com/u/Dr_Paprika)\
**Post date:** [April 17, 2023, 8:07pm UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/19 "2023-04-17T20:07:09Z")

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Fair enough. Hope you find an acceptable app.

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**Author:** ![xtern0](https://avatars.discourse-cdn.com/v4/letter/x/ee59a6/32.png) [@xtern0](https://boards.straightdope.com/u/xtern0)\
**Post date:** [January 19, 2024, 10:40pm UTC](https://boards.straightdope.com/t/can-i-make-my-iphone-clock-display-decimal-minutes/982767/20 "2024-01-19T22:40:05Z")

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The answer to the OP’s original question is “CentWatch”, which is an iOS app that is tailored for Rally Competitors, in which minutes are divided into “cents” for scoring purposes.

> **[‎CentWatch](https://apps.apple.com/us/app/centwatch/id424471807)**
>
> ‎CentWatch is a clock and stopwatch that can display time in cents (hundredths of a minute). This is useful in Time-Speed-Distance (TSD) rally competition.
> 
> The user may select between white text on black or black text on white, as appropriate for...

Best of luck to the OP!

X

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