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Projects/1-Beginner/Date-Elapsed-App.md

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+# Date Elapsed
+
+**Tier:** 1-Beginner
+
+A common question that people would ask is how many days have elapsed since a certain date. Despite this question being straightforward, the calculation is actually quite tricky; and doing it mentally or even on paper is time-draining.
+
+## User Stories
+
+-   [ ] User can choose a start date
+-   [ ] User can choose an end date
+
+## Bonus features
+
+-   [ ] User can optionally choose if they want the first (or last) date to be counted as a day itself - in some calculations, we surprisingly want this feature.
+-   [ ] User can opt to include/exclude weekends.
+-   [ ] User can write the program as a GUI or CLI app.
+
+## Useful links and resources
+
+- [How to work with dates and time with Python](https://opensource.com/article/17/5/understanding-datetime-python-primer)
+
+## Example projects
+
+- [timeanddate.com](https://www.timeanddate.com/date/duration.html)
+- [theCalculatorsite](https://www.thecalculatorsite.com/time/days-between-dates.php)
+- [Python implementation example (with code)](https://github.com/salfaris/utilities/blob/main/date-since.py)

README.md

@@ -51,6 +51,7 @@ required to complete them.
 | [Color Cycle](./Projects/1-Beginner/Color-Cycle-App.md)                           | Cycle a color value through incremental changes            | 1-Beginner |
 | [Countdown Timer](./Projects/1-Beginner/Countdown-Timer-App.md)                   | Event Countdown timer                                      | 1-Beginner |
 | [CSV2JSON App](./Projects/1-Beginner/CSV2JSON-App.md)                             | CSV to JSON converter                                      | 1-Beginner |
+| [Date Elapsed](./Projects/1-Beginner/Date-Elapsed-App.md)                 | Calculate date difference                                   | 1-Beginner |
 | [Dollars to Cents](./Projects/1-Beginner/Dollars-To-Cents-App.md)                 | Convert dollars to cents                                   | 1-Beginner |
 | [Dynamic CSS Variables](./Projects/1-Beginner/Dynamic-CSSVar-app.md)              | Dynamically change CSS variable settings                   | 1-Beginner |
 | [First DB App](./Projects/1-Beginner/First-DB-App.md)                             | Your first Database app!                                   | 1-Beginner |