Time Calculator Simple&Easy 1.9

Calculator App

A calculator app that excels at calculating time.

Version 1.7

• The option to omit the last unit "Second" after "Hour" or "Minute" has been added.

Version 1.6

• Enhanced the app to allow easy retrieval of calculated results for further mathematical calculations. Simply long press on the hours/minutes/seconds buttons.

Version 1.5.2

• Added support for physical keyboards (external keyboards) on iOS/iPadOS 15.

Version 1.5

• You can now immediately tap the number buttons upon launching the app.

Version 1.4

• Added support for physical keyboards (external keyboards) on iOS 14.0 and later.
• Updated app keypad: "d" | "h" | "m" | "s" changed to "D" | "H" | "M" | "S", "." for decimal point, "+" for addition, "-" for subtraction, "*" for multiplication, "/" for division, "=" for calculation, "C" for clear, and "←" for backspace/delete.
• Added new keyboard shortcuts: Copy expression to clipboard: ⌃C | ⌘C, Paste expression from clipboard: ⌃V | ⌘V, Resize (only for iPad, Mac): ⌃R | ⌘R, Show/hide history view: ⌃H | ⌘H

Version 1.3

• Enabled the input of decimal points.
• Example: 8h - 7.75h = 15m

Version 1.2

• In unit conversion after calculation, results are displayed in two types.
• Example: for "m" (minutes), 1h 25m 2s -> 85m 2s -> 85.033m
• (Switch between the two by pressing "m" each time)

Version 1.1

• Saved formula history as calculation results. Allows for reuse.
• Enables multitasking with Slide Over and Split View on iPad.
• Offers light and dark styles.
• Can be resized on iPad only.
• Supports device rotation on iPad only.
• Please use this app conveniently and efficiently!

Usage

The calculator app handles four units: days (d), hours (h), minutes (m), and seconds (s). Each unit is represented by a single letter, corresponding to the buttons on the calculator keypad.

Arithmetic Operations

1. Addition: Example - 1h 25m + 2h 10m = 3h 35m
2. Subtraction: Example - 1h 25m - 2h 10m = -45m
3. Multiplication: Example - 1h 25m × 3 = 4h 15m (The multiplicand has no unit)
4. Division Option 1: Example - 1h 25m ÷ 3 = 28m 20s
5. Division Option 2: Example - 1h 25m ÷ 28m 20s = 3.000 (Fixed to three decimal places)

Of course, you can also perform continuous calculations like a normal calculator.

Example: 1h 25m + 2h 10m - 58m = 2h 37m

Unit Conversion

You can convert units to days, hours, minutes, and seconds.

• Example: Conversion of "1d (day) 2h (hours) 3m (minutes) 5s (seconds)":
  • To seconds: s - Result: 93785s
  • To minutes: m - Result: 1563m 5s
  • To hours: h - Result:26h 3m 5s
  • To days: d - Result:1d (day) 2h (hours) 3m (minutes) 5s (seconds)

Press the same unit key to switch the display. Results are fixed to three decimal places.

• Example: Conversion of "1d (day) 2h (hours) 3m (minutes) 5s (seconds)":
  • To seconds: s s - Result: 93,785.000s
  • To minutes: m m - Result: 1563.083m
  • To hours: h h - Result: 26.051h
  • To days: d d - Result: 1.085d (day)

Note: Forgetting to include the unit may result in errors. In such cases, press the "C" (clear) or "←" (backspace) button to correct.

Example: Mistaken input of "120s + 32" corrected to "s = 2m32s"

Display and Functionality

The display of this app consists of two rows. The first row shows the calculation formula, and the second row shows the input data or calculation results.

Upon launching the app, the second row is automatically populated with the current local time in the format "24h59m59s".

Tap on the display of this app to copy the contents.

The functionality of the CLEAR button depends on the number of times it is pressed continuously:

• First press: Clears the second row of the display.
• Second press: Clears the entire first row of the display.
• Third press: Sets the current local time in the second row of the display.