1.4 KiB
epic, story, title, status
| epic | story | title | status |
|---|---|---|---|
| 4 | 4.2 | Time Math | draft |
Epic 4 — Date, Time & Time Zones
Goal: Full date/time math, business day calculations, and timezone awareness.
Story 4.2: Time Math
As a CalcPad user, I want to add and subtract durations from times and calculate durations between times, So that I can compute meeting end times, elapsed time, and scheduling math.
Acceptance Criteria:
Given the expression 3:35 am + 9 hours 20 minutes
When the engine evaluates it
Then the result is 12:55 pm
Given the expression 3:35 PM + 9 hours 20 minutes
When the engine evaluates it
Then the result is 12:55 AM (next day)
And the result indicates the day rollover if applicable
Given the expression 14:30 - 2 hours 45 minutes
When the engine evaluates it in 24-hour mode
Then the result is 11:45
Given the user's time format preference is 12-hour When time results are displayed Then they use AM/PM notation
Given the user's time format preference is 24-hour
When time results are displayed
Then they use 24-hour notation (e.g., 14:30 instead of 2:30 PM)
Given the expression 9:00 AM to 5:30 PM
When the engine evaluates it
Then the result is 8 hours 30 minutes
Given the expression 11:00 PM to 2:00 AM
When the engine evaluates it
Then it assumes the time crosses midnight
And the result is 3 hours