“We’ve been dating for like… 2 years?” Wrong. It’s been 2 years, 3 months, 14 days, 6 hours, and 23 minutes. This calculator knows.

Or: “Contract started about 6 months ago.” Nope. It’s been 187 days. Time to renegotiate.

When you need exact duration between two dates (not approximations, not “around that time”), this is your tool.

What This Calculator Does

Pick any two dates and times. It tells you the exact duration between them in:

• Years, months, weeks, days
• Hours, minutes, seconds
• Working days (Monday to Friday only)

All calculated to the second. No rounding, no estimates.

How to Use It (Quick Setup)

Step 1: Set your first date & time Click the first date picker. Choose the date. Set the time.

There’s a “Set to Now” button if you want to start from this exact moment.

Step 2: Set your second date & time Same thing. Pick the date and time.

Again, “Set to Now” button if that’s your end point.

Step 3 (Optional): Use quick presets Don’t want to manually set dates? Use the preset buttons:

• 1 Week Ago (sets first date to 7 days before today)
• 1 Month Ago (30 days back)
• 1 Year Ago (365 days back)
• 1000 Days Ago (because why not)

All presets auto-set second date to now.

Step 4: Click “Calculate Duration”

You get:

• Main result (the big number breakdown)
• Total in each unit (days, hours, minutes, seconds)
• Detailed breakdown (years, months, weeks, working days)
• Full date details with direction (forward or backward in time)

Real Nigerian Life Uses

Relationship tracking: First date was February 14, 2023. Today is November 4, 2025. How long exactly? Result: 2 years, 8 months, 21 days. Plan that anniversary properly.

Contract duration check: You signed that freelance gig on March 1, 2025. Today is November 4. How long have you been working? Result: 248 days = 8.1 months. Time to ask for a rate increase.

NYSC completion: Started August 1, 2024. Ends July 31, 2025. Total duration? Result: 365 days = 52.14 weeks = 12 months. But working days? 260 days (weekends don’t count).

Pregnancy tracking: Conception date: February 1, 2025. Today: November 4, 2025. How far? Result: 276 days = 9.1 months = 39.4 weeks. Baby coming soon!

Visa validity: Visa issued March 15, 2025, expires March 15, 2026. Days remaining from November 4? Result: 131 days = 18.7 weeks = 4.3 months. Start planning that extension.

Gym membership ROI: Paid ₦50K for annual membership on January 1. Today is November 4. Been 308 days. Used it 12 times. Cost per visit: ₦4,167. Ouch.

Understanding Working Days

The calculator shows “working days” separately. That’s Monday through Friday only. Weekends don’t count.

Why this matters: If your contract says “30 working days notice,” that’s not 30 calendar days. It’s 6 weeks (because weekends are excluded).

Example: Notice given November 4 (Monday). 30 working days later is December 12 (not December 4).

The Direction Feature

Calculator tells you if time moved forward or backward. If first date is earlier, it’s “forward in time.” If first date is later, it’s “backward in time.”

Doesn’t change the math, just helps you understand which way you’re measuring.

Tips to Maximize This Tool

For invoicing: Track project start and end dates precisely. “From April 3, 9am to June 15, 5pm = 73 days, 8 hours.” Invoice accordingly.

For legal stuff: Court dates, contract periods, notice periods – all need exact calculations. This tool keeps you legally accurate.

For fitness goals: Started workout January 1, want to see progress by March 1? That’s exactly 59 days. Count every day.

For memories: How long since that major life event? Sometimes the exact number of days hits different emotionally.

Quick Math Check

The tool shows total in multiple units. Use this to verify:

• 1 year = 365.25 days (accounts for leap years)
• 1 month = 30.44 days (average)
• 1 week = 7 days
• 1 day = 24 hours = 1,440 minutes = 86,400 seconds

If you’re questioning the calculator’s math, now you know the formulas.

Why Precision Matters

“About 6 months” could mean anywhere from 170 to 190 days. That’s a 20-day margin of error. In business, relationships, or legal matters, that margin can cost you.

This calculator removes the guesswork. 183 days means 183 days. Period.