Calculators

Your client in London says, “Let’s meet at 3 PM my time.” You’re in Lagos calculating, “Wait, is that 4 PM or 5 PM here? Do they have daylight saving…

Your boss says, “This is due in 45 working days.” You’re staring at the calendar like it’s a WAEC question. When exactly is that? Or your landlord wants rent “90…

Your contract ends May 15th. Today is February 10th. How many days until freedom? Or stress? (Depending on your next move.) You could count on your fingers, use a calendar,…

The Question Everyone Asks “Wait, what day was December 1st last year?” “When does my birthday fall in 2026?” “Was I born on a Saturday or Sunday?” You’re scrolling through…

You worked 3 hours on Monday, 2 hours 45 minutes on Tuesday, 5 hours 20 minutes on Wednesday. Your client asks, “How many hours total?” You’re there doing mental math…

You’re planning your 2025 leave days, trying to squeeze maximum vacation from minimum annual leave. But wait, is 2025 a leap year? Does February give you an extra day to…

“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…

Nigeria doesn’t do Daylight Saving Time (we’re smart like that). But if you’re traveling to the US, UK, or Europe, or if you work with international teams, DST will mess…

Ever notice how sunrise times jump around even though “days are 24 hours”? Or why solar noon (sun highest in sky) isn’t always at 12:00pm on your watch? That’s because…

Malcolm Gladwell said you need 10,000 hours to master anything. Cool story. But how long is that actually? Or your internet provider says “network will be down for 86,400 seconds.”…