Conversion Deck
Time Converter
Convert between seconds, minutes, hours, days, weeks, months, and years. Type in any box — the rest update instantly.
Months and years use average lengths (1 month ≈ 30.4375 days, 1 year = 365.25 days). For calendar-specific calculations, use the date-difference tool below.
Quick facts
- 1 minute = 60 seconds
- 1 hour = 60 minutes = 3,600 seconds
- 1 day = 24 hours = 1,440 minutes = 86,400 seconds
- 1 week = 7 days
- 1 month (avg) ≈ 30.4375 days
- 1 year (avg) = 365.25 days
Date difference (days between two dates)
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Total days
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Weeks
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Months (avg)
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Years (avg)
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Business days (Mon–Fri)
We calculate using UTC to avoid timezone daylight offsets. Months/years use averages (see notes above). Business days exclude Saturdays and Sundays.
Which holidays are excluded?
We exclude only these fixed-date federal holidays (no observed-day shifts):
2023 US Federal Holidays (fixed-date)
2023-01-01— New Year’s Day2023-06-19— Juneteenth National Independence Day2023-07-04— Independence Day2023-11-11— Veterans Day2023-12-25— Christmas Day
2024 US Federal Holidays (fixed-date)
2024-01-01— New Year’s Day2024-06-19— Juneteenth National Independence Day2024-07-04— Independence Day2024-11-11— Veterans Day2024-12-25— Christmas Day
2025 US Federal Holidays (fixed-date)
2025-01-01— New Year’s Day2025-06-19— Juneteenth National Independence Day2025-07-04— Independence Day2025-11-11— Veterans Day2025-12-25— Christmas Day
2026 US Federal Holidays (fixed-date)
2026-01-01— New Year’s Day2026-06-19— Juneteenth National Independence Day2026-07-04— Independence Day2026-11-11— Veterans Day2026-12-25— Christmas Day
2027 US Federal Holidays (fixed-date)
2027-01-01— New Year’s Day2027-06-19— Juneteenth National Independence Day2027-07-04— Independence Day2027-11-11— Veterans Day2027-12-25— Christmas Day
2028 US Federal Holidays (fixed-date)
2028-01-01— New Year’s Day2028-06-19— Juneteenth National Independence Day2028-07-04— Independence Day2028-11-11— Veterans Day2028-12-25— Christmas Day
2029 US Federal Holidays (fixed-date)
2029-01-01— New Year’s Day2029-06-19— Juneteenth National Independence Day2029-07-04— Independence Day2029-11-11— Veterans Day2029-12-25— Christmas Day
2030 US Federal Holidays (fixed-date)
2030-01-01— New Year’s Day2030-06-19— Juneteenth National Independence Day2030-07-04— Independence Day2030-11-11— Veterans Day2030-12-25— Christmas Day
FAQ
How many seconds are in a day?
There are 86,400 seconds in a day (24 × 60 × 60).
How do you convert hours to minutes?
Multiply hours by 60. Example: 2.5 hours × 60 = 150 minutes.
Why are months and years “approximate”?
Months vary from 28–31 days and years vary with leap years. We use averages (1 month ≈ 30.4375 days, 1 year = 365.25 days) for consistent conversions.