USCalendar.org | Official United States civil calendars, legal holidays & observances
Verified Official Data (OPM & State Statutes) | Wednesday, September 9, 2026
Statutory & Legal Working Days Engine

US Statutory Business Day Calculator

Calculate exact working and business days between any two dates. Weekends and official federal legal holidays (5 U.S.C. § 6103) as well as state statutory holidays are automatically deducted.

First day of the interval to count.

Required

Final target day included in the date span.

Quick Date Presets One-click standard commercial spans
Active Legal Jurisdiction: US-CA

Deductions automatically include Federal statutory holidays and state-specific code shifts.

Net Statutory Business Days
22 working days
≈ 176 standard work hours (8h/day) 73.3% of calendar span
Span: September 1, 2026 (Tuesday) to September 30, 2026 (Wednesday)
30 total − 8 weekends − 0 holidays = 22 days
Time Distribution 30 Days Total
Business Days 22 days (73.3%)
Weekend Days 8 days (26.7%)
Statutory Holidays 0 days (0.0%)
Standard Hours (40h/wk): 176 hours

Interval Metrics Breakdown

Day classifications across span
Total Calendar Days
30
Inclusive elapsed span
Weekend Days
−8
Saturdays & Sundays
Statutory Holidays
−0
Official legal holidays
Net Business Days
22
Working days payable

No Statutory Holidays in this Range

All days between these dates are either regular working days or standard weekend days.

Legal & Business Guide

How the Statutory Business Day Calculator Works

Our calculation engine enforces federal shift rules, state statutory definitions, and banking settlement calendars.

1

Define Date Span

Select your start and end dates. The calculator computes the total inclusive span of calendar days.

2

Exclude Weekend Days

All Saturdays and Sundays within the interval are automatically identified and deducted from the business count.

3

Deduct Statutory Holidays

Statutory federal and state legal holidays (including Monday/Friday shift observation rules per 5 U.S.C. § 6103) falling on weekdays are subtracted to yield net business days.

Statutory Authority Compliance

  • • Federal Framework: Title 5, United States Code, Section 6103 (5 U.S.C. § 6103).
  • • Banking & Settlements: Federal Reserve Bank holiday schedule for ACH, Fedwire, and checks.
  • • State Adaptations: Includes official state code shifts (e.g. California Government Code § 19853).

Common Applications

  • • Legal Timelines: Court filing deadlines and statutory response periods.
  • • Payroll & Invoicing: Net business days calculation for commercial contracts and SLA delivery.
  • • Escrow & Real Estate: Calculating 3-day rescission and closing date windows.