iPhone Screenshots


Want to know how many days you can receive the Christmas gift? Want to know how many days you will have the college entrance exam?Want to know how many days the 158-day wealth management product expired? This tool helps you to calculate the distance between any time, down to second. It can also calculate the day after that day between any time. This tool is not only for wealth management but also for period time. It can tell you the date before or after a certain period.

What’s New

Version 1.10.4

[+] Bug fixes and performance improvements.

Ratings and Reviews

4.8 out of 5
490 Ratings

490 Ratings

JasonAubree ,

The Best App For...

I am a 34 year old man living with Crohn's Disease. Unfortunately, the doctors have me on a lot of medicine. I needed an app so I know how many days I have until I have to have my medicines filled. I have tried a lot of the free apps that the App Store has to offer but a lot of them were too confusing. Very rarely do I spend any money on an app, but I went with my gut 😀 and bought the date time app. I LOVE this app. It is perfect for my needs and is very precise when making calculations. It will give you from, when, days, hours, minutes, seconds and so on. It even lets you put in dates from years ago! I even know how old I am to the tee when calculating the day that I was born until the present and it gives me everything and anything that I could possibly want to know. Whoever designed this app is extremely intelligent and has their head on right. Neat and fun app. I use it on a daily basis. It's especially useful when calculating the day when I have to call the pharmacy for a refill. The only thing I wish this app would do is to make a sound of when 15 days or 30 days, days of importance are vital. Other than that, perfect app!

BrittonBoy ,

Time Saver

I use this on a regular basis to find the (hours and minutes) between medical surgical events, and it has been accurate with no crashes so far. I've been using it for months. It is easy to enter dates, hours, minutes, etc. and the options are covered well.

2redbulls ,

Top Notch Utility

This has turned out to be one of my most used utility apps next to checking the weather! It is simple in design and very useful. So much of what we do evolves around dates, times, and scheduling. This is the very best tool that can do it all in one app!

App Privacy

The developer, 山 钟, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer's privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


山 钟
19.2 MB

Requires iOS 9.3.5 or later. Compatible with iPhone, iPad, and iPod touch.


English, Japanese, Simplified Chinese, Traditional Chinese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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