Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Daylight Saving Time Impact Calculator

Quantify how many extra hours per week your meeting schedule is disrupted when DST transitions create a temporary offset mismatch between two regions. Use it during the spring and autumn transition weeks when one region has shifted clocks and the other has not.

Region 1 DST Status

Region 2 DST Status

Normal Time Difference (hours)

Meetings Per Week (meetings)

Fill in the required fields to see your result.

Time Zones

International Meeting Time Planner

Score any proposed meeting time based on how well it falls within business hours for your organiser and two participants across different time zones. Use it to find a window that works for everyone without spreadsheet guesswork.

Proposed Meeting Time (h)

Organiser Time Zone

Participant 1 Time Zone

Participant 2 Time Zone

Business Hours Priority

Fill in the required fields to see your result.

Key differences

	Daylight Saving Time Impact Calculator	International Meeting Time Planner
Category	Time Zones	Time Zones
Inputs required	4	5
Result	Schedule Adjustment Impact (hours/week)	Meeting Suitability Score (%)
What it does	Quantify how many extra hours per week your meeting schedule is disrupted when DST transitions create a temporary offset mismatch between two regions. Use it during the spring and autumn transition weeks when one region has shifted clocks and the other has not.	Score any proposed meeting time based on how well it falls within business hours for your organiser and two participants across different time zones. Use it to find a window that works for everyone without spreadsheet guesswork.