Why WEEKDAY and WORKDAY in Google Sheets? - Purpose & Use Cases

The Big Idea

Discover how to make your date calculations foolproof and effortless with just two simple functions!

The Scenario

Imagine you have a list of dates and you need to know which day of the week each date falls on, or you want to find the next working day after a holiday or weekend.

Doing this by hand means checking calendars, counting days, and skipping weekends manually.

The Problem

Manually checking each date is slow and easy to mess up, especially if you have many dates.

You might forget to skip weekends or holidays, causing errors in your planning or reports.

The Solution

The WEEKDAY and WORKDAY functions automatically tell you the day of the week for any date and calculate future working days, skipping weekends and holidays.

This saves time and avoids mistakes, making your work more reliable.

Before vs After

✗ Before

Check calendar for each date; count days; skip weekends by memory

✓ After

WEEKDAY(date)  // returns day number
WORKDAY(start_date, days)  // returns next working day

What It Enables

You can quickly plan schedules, track deadlines, and analyze dates without worrying about weekends or holidays.

Real Life Example

A manager wants to know the weekday of each invoice date and find the next business day to schedule payments, avoiding weekends and holidays automatically.

Key Takeaways

Manual date checks are slow and error-prone.

WEEKDAY and WORKDAY automate day calculations and skip non-working days.

This makes scheduling and date analysis fast and accurate.