Departure Time Calculator
Calculate what time you must leave home to catch a flight or arrive on time for an appointment.
Calculation Inputs & Parameters
12:00
50
(Default)
30
(Default)
Recommended Departure Time
10:40
Total Lead Time
80 minutes (1.3 hrs)
Transit Duration
50 mins
Safety Buffer
30 mins
How the Calculation Works
Subtracts travel time and safety buffer from desired arrival time.
Formula: Departure = Arrival - Travel Time - Buffer Time
Practical Worked Example
Given Inputs: Arrive 12:00 (50m drive + 30m buffer)
Calculated Output: Leave at 10:40
- 12:00 - 80 mins = 10:40.