---
title: "日付計算機 - 日数や時間が簡単に計算できる - Reviews, Revenue and Downloads in Japan | Apple App Store"
description: "日付間の日数計算や日数加算などが可能な日付計算機です。記念日までの日数計算、月日をまたぐ時間計算などが可能です。  ■機能一覧 ・日数計算：開始日と終了日の間の日数や年数を計算します ・日時計算：開始日時と終了日時の間の日数や時間数を計算します ・時間計算：開始時刻と終了時刻の間の時間数を計算します ・日付計算＋日数：開始日に日数を足したときの日付を計算します ・時刻計算＋時間：開始時刻に時間や分"
---

# 日付計算機 - 日数や時間が簡単に計算できる — Japan

![日付計算機 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple117/v4/c8/21/99/c82199cf-cddc-04e5-8e85-819f8fa1ff6d/mzl.ayxtsnao.png/434x0w.png)

**Developer:** [Takahiro Kusano](https://apptail.io/developer/takahiro-kusano-FrYb)
**Category:** Utilities
**Rating:** 3.9/5 (10 ratings)
**Price:** Free
**Bundle ID:** work.momo.apps.Aquavit
**Store:** Apple App Store
**Country:** Japan
**Version:** 1.2.15 (released 2017-06-07)
**Original Release:** 2016-05-16
**Languages:** English, Japanese

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id1114414986)
**AppTail Page:** [https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/japan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/japan)

## 日付計算機 Description
日付間の日数計算や日数加算などが可能な日付計算機です。記念日までの日数計算、月日をまたぐ時間計算などが可能です。

■機能一覧
・日数計算：開始日と終了日の間の日数や年数を計算します
・日時計算：開始日時と終了日時の間の日数や時間数を計算します
・時間計算：開始時刻と終了時刻の間の時間数を計算します
・日付計算＋日数：開始日に日数を足したときの日付を計算します
・時刻計算＋時間：開始時刻に時間や分を足したときの時刻を計算します
・日時計算＋日時：開始日時に日数や時間・分を足したときの日時を計算します
・各種設定

※一部有料コンテンツがございます

## 日付計算機 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/ba/e2/70/bae27012-9350-a92b-655c-8fb4c3a3c385/pr_source.jpg/1242x2208.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/fc/82/dd/fc82ddb4-3fef-7524-1d93-6f3e397e314a/pr_source.jpg/1242x2208.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple19/v4/22/30/03/22300308-4076-8ff1-889f-414d3cbc92ad/pr_source.jpg/1242x2208.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple71/v4/d3/94/f2/d394f23c-4268-ed2f-04b1-5c47630cd190/pr_source.jpg/1242x2208.png)

## 日付計算機 Rating Breakdown in Japan
- 5 stars: 5 (50%)
- 4 stars: 2 (20%)
- 3 stars: 1 (10%)
- 2 stars: 1 (10%)
- 1 stars: 1 (10%)

## 日付計算機 Reviews in Japan

### ***** "使いやすい"
有料のアドオンは購入できないようです。
広告消したいのですが。
-- ひとみ0628, 2024-06-22

### ***** "新時代への対応"
令和に変わります。バージョンアップお願いします。
-- デンデンちゃん, 2019-04-26

### ***-- "直して下さい…"
買い増したiPhoneSEのiOSバージョンが11.4.1だったのですが、このアプリをダウンロードし開いてみると文字が
0y0m0dといった表記になってしまいました。

普段からお世話になっているアプリで、使い易く、お気に入りだったので課金して使用していたのすが、表記がおかしくなってしまい非常に残念です。

長いことアップデートされていませんが、修正していただけませんでしょうか…

よろしくお願いします。
-- neochabesu, 2018-11-27

### ***** "良い"
計算する初日を含むことができ、助かります。
欲を言えば、何日後だけでなく、何日前( - )も計算出来るようアップデートしてください。
-- BUNBUMすき, 2018-06-29

### ***** "使いやすい！"
類似したアプリを有料購入してしまったのですが、アップデートがされておらず、将来的に使えなくなることに不安を感じておりました。こちらのアプリの方が使いやすく、前述のアプリより先に見つけられなかったことが残念です。しばらく使ってみて、課金も検討したいと思います。仕事柄よく使うので、アップデートよろしくお願いします
-- ましゅま郎, 2017-04-27

### ****- "直感的に使えます"
仕事で「〇/〇の〇日後」や「〇/〇〜〇/〇の日数」の計算、また、1/1を開始日にしてジュリアン日付を求めることを頻繁に行います。操作方法がシンプルで直感的に使えるので重宝しています。欲を言えば、「日付計算＋日数」で、日数にマイナスを指定できると、「〇日前」の計算もできてさらに便利だと感じました。
-- hamokou, 2016-11-06

### *---- "日数が合っていません"
このアプリ内では昭和63年と平成元年の差は６２年あるらしいです。
-- 僕くん, 2016-08-31

### ****- "まあまあ使える"
使う機会はあまりありませんがまあまあ使えます。
入力した値を初期化できるようになると助かるかなぁ。あと、時間数の入力が23までしかできないので、せめて数十時間ぐらいは設定できるともっといいかな。
-- ノブ寅, 2016-05-25

[View all 日付計算機 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)



## 日付計算機 Discovered Keywords
- 日付計算機

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## 日付計算機 Available In
- [Japan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/japan)
- [United States](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/united-states)
- [Hungary](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/hungary)
- [Australia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/australia)
- [Belgium](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/belgium)
- [Bulgaria](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/bulgaria)
- [Bahrain](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/bahrain)
- [Bermuda](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/bermuda)
- [Brunei](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/brunei)
- [Belarus](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/belarus)
- [Belize](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/belize)
- [Canada](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/canada)
- [Switzerland](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/switzerland)
- [Chile](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/chile)
- [China](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/china)
- [Cyprus](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/cyprus)
- [Czechia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/czechia)
- [Germany](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/germany)
- [Denmark](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/denmark)
- [Algeria](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/algeria)
- [Ecuador](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/ecuador)
- [Estonia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/estonia)
- [Egypt](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/egypt)
- [Spain](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/spain)
- [Finland](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/finland)
- [United Kingdom](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/united-kingdom)
- [Grenada](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/grenada)
- [Ghana](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/ghana)
- [Greece](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/greece)
- [Hong Kong SAR China](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/hong-kong)
- [Croatia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/croatia)
- [Indonesia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/indonesia)
- [Ireland](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/ireland)
- [Israel](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/israel)
- [India](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/india)
- [Iceland](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/iceland)
- [Italy](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/italy)
- [Jamaica](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/jamaica)
- [Jordan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/jordan)
- [Kenya](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/kenya)
- [South Korea](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/south-korea)
- [Kuwait](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/kuwait)
- [Cayman Islands](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/cayman-islands)
- [Lebanon](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/lebanon)
- [Sri Lanka](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/sri-lanka)
- [Lithuania](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/lithuania)
- [Luxembourg](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/luxembourg)
- [Latvia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/latvia)
- [Madagascar](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/madagascar)
- [North Macedonia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/north-macedonia)
- [Malta](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/malta)
- [Mauritius](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/mauritius)
- [Mexico](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/mexico)
- [Malaysia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/malaysia)
- [Namibia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/namibia)
- [Nigeria](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/nigeria)
- [Netherlands](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/netherlands)
- [Norway](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/norway)
- [Nepal](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/nepal)
- [New Zealand](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/new-zealand)
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- [Peru](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/peru)
- [Philippines](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/philippines)
- [Pakistan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/pakistan)
- [Poland](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/poland)
- [Portugal](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/portugal)
- [Qatar](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/qatar)
- [Romania](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/romania)
- [Russia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/russia)
- [Saudi Arabia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/saudi-arabia)
- [South Africa](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/south-africa)
- [Armenia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/armenia)
- [Austria](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/austria)
- [Azerbaijan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/azerbaijan)
- [Vietnam](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/vietnam)
- [United Arab Emirates](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/united-arab-emirates)
- [Singapore](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/singapore)
- [Slovenia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/slovenia)
- [Senegal](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/senegal)
- [Suriname](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/suriname)
- [Thailand](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/thailand)
- [Tunisia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/tunisia)
- [Türkiye](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/turkey)
- [Taiwan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/taiwan)
- [Ukraine](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/ukraine)
- [Uruguay](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/uruguay)
- [Uzbekistan](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/uzbekistan)
- [Sweden](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/sweden)
- [Colombia](https://apptail.io/app/date-time-calculator-quick-and-simple-ocfc/colombia)

---

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