Business & Working Days Hub - Working Days Calculator, Annual Hours & Federal Holidays

Q: How do Saturday and Sunday holiday observances affect business working days?

Under US Federal Law (5 U.S.C. 6103), when a statutory holiday falls on a Saturday, the preceding Friday is observed as a federal legal holiday. When a holiday falls on a Sunday, the following Monday is observed. Corporate banking, federal courts, and payroll schedules close on observed days.

Q: What is the difference between NETWORKDAYS and NETWORKDAYS.INTL in Microsoft Excel?

NETWORKDAYS(start_date, end_date, [holidays]) automatically assumes a standard Saturday and Sunday weekend. NETWORKDAYS.INTL allows custom weekend parameters, such as Friday/Saturday weekends for Middle Eastern jurisdictions or Sunday-only working weeks.

Q: How are e-commerce shipping business turnaround days calculated?

Standard shipping turnaround days exclude the day the order was placed if placed after order cutoff times (e.g. 2:00 PM), and count only full business days (Monday–Friday) excluding statutory postal and carrier holidays.

Corporate Calendars

Annual Working Days (2024 – 2028)

5 Core Years

2024 Leap Year

251 Working Days

2,008 Billable Hours

2,000 Billable Hours

2,000 Billable Hours

2,000 Billable Hours

2,000 Billable Hours

11 Federal Holidays

View Calendar →

Monthly Breakdown

2026 Monthly Workday Calendars

All 12 Months

January 20 Days 160h • 2 Hols February 19 Days 152h • 1 Hol March 22 Days 176h • 0 Hols April 22 Days 176h • 0 Hols May 20 Days 160h • 1 Hol June 21 Days 168h • 1 Hol July 22 Days 176h • 1 Hol August 21 Days 168h • 0 Hols September 21 Days 168h • 1 Hol October 21 Days 168h • 1 Hol November 19 Days 152h • 2 Hols December 22 Days 176h • 1 Hol

Hours to Workdays

Standard 8-hour workday conversions

6 Tools

40 Hours 5 Workdays 1 Full Week 80 Hours 10 Workdays 1.3k/mo 120 Hours 15 Workdays 3 Weeks 160 Hours 20 Workdays 1.3k/mo 200 Hours 25 Workdays 5 Weeks 1000 Hours 125 Workdays 25 Weeks

Turnaround Deadlines

Shipping & SLAs from today

5 Turnarounds

2 Business Days From Today Express Delivery • 720/mo 3 Business Days From Today Standard Carrier SLA • 720/mo 5 Business Days From Today 1 Business Week • 720/mo 7 Business Days From Today Contract SLA • 720/mo 10 Business Days From Today 2 Business Weeks • 720/mo

Standards & Formulas

Excel Formulas & Corporate Payroll Guides

Legal Guide

Calendar Days vs Working Days

Key differences between calendar spans and statutory working days for real estate escrows, court filings, and delivery SLAs.

Excel Tutorial

Calculate Working Days in Excel

Master the NETWORKDAYS and NETWORKDAYS.INTL functions including custom federal holiday arrays.

HR & Payroll 1.3k/mo

Average Working Days in a Month

The mathematical standards (20.83 to 21.67 days) utilized by corporate HR teams and payroll administrators across global enterprises.

Workday Knowledge Base

Frequently Asked Questions

Official statutory guidelines on working days, shipping deadlines, and corporate payroll standards.

What is the statutory definition of a business day?

In commercial, banking, and legal contexts, a business day is any standard calendar day on which commercial banks and financial markets are open for business—typically Monday through Friday, excluding official federal statutory public holidays.

How do Saturday and Sunday holiday observances affect business working days?

What is the difference between NETWORKDAYS and NETWORKDAYS.INTL in Microsoft Excel?

How are e-commerce shipping business turnaround days calculated?