UtilityLive

Date Difference Calculator

Enter two dates to see the gap in days, weeks, months and business days.

Short answer

Calculates calendar difference between two dates. Business days exclude Saturdays and Sundays only — UK bank holidays are not deducted.

Dates

From date

To date

Fill in the fields above to see your result instantly.

Calculation method, coverage and version

Inputs used: From date, To date.
Calculation approach: The calculator applies the rules and assumptions described in “How it works” to the values you enter. Rounding can cause small differences from an official or provider calculation.
Coverage: Utility. UK nations, tax treatment, local rules and provider criteria can differ; check the official sources shown below before acting.
Content version: No page-specific review date is currently published. Treat the result as indicative and verify current rules independently.

Not included unless explicitly requested: personal circumstances not entered, provider discretion, future rule changes, professional fees and case-specific exceptions. Read the full calculator methodology.

How it works

Calendar days come from a simple subtraction. Business days iterate one day at a time and count Mon–Fri only.

Worked example

From 2026-01-01 to 2026-04-30 → 119 days, ~17 weeks, ~3 months 29 days, 86 business days.

Who should use this

•Project planning
•Calculating notice periods
•Counting days until a deadline

Common mistakes

×Forgetting that business days exclude weekends but not bank holidays
×Mixing up 'from' and 'to' — we handle reversed dates but flag it

Frequently asked questions

Are bank holidays deducted from business days?▾

No — only Saturdays and Sundays are excluded. Add holiday adjustments separately.

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