Bulk Date Calculator
Perform the same date calculation across multiple dates at once
Manage large-scale date operations with TimezoneToolbox time and timezone utilities for teams, then organize results using CalendarIQ for streamlined planning.
Input Dates
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Results
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Enter dates and configure operation above
💾 Calculations are saved automatically to your history
How It Works
The bulk date calculator lets you perform the same operation on multiple dates at once. Perfect for calculating project milestones, payment schedules, or any scenario where you need to apply consistent date arithmetic to a list of dates.
You can either manually enter dates (one per line) or specify a date range. The calculator will apply your chosen operation (add or subtract days/weeks/months/years) to all dates and display the results. Export to CSV for easy import into spreadsheets or project management tools.