Time Duration Calculator – Calculate Hours & Minutes
Time Duration Calculator
Find total hours and minutes between two times easily. Supports overnight shifts, work hours calculation, and decimal conversion.
Enter start and end times to calculate duration.
How to Calculate Hours Between Two Times?
Using our online Time Duration Calculator is quick and simple. Whether you are logging employee work shifts, calculating billable client hours, tracking study duration, or timing sports events, this free tool computes elapsed time in hours, minutes, total minutes, and decimal hours.
Calculating Overnight Shifts & Decimal Hours
If your workday or event starts in the evening and ends after midnight (e.g., 10:00 PM to 6:00 AM), check the "End time is on the next day" option. Additionally, payroll departments frequently require decimal time conversion (for example, 8 hours 30 minutes equals 8.5 decimal hours) to easily multiply time by hourly wage rates.
Frequently Asked Questions (FAQs)
How do I calculate an overnight work shift duration?
Enter your shift start time and end time, then enable the 'End time is on the next day' option. The calculator will automatically account for the midnight crossover.
Why is decimal hour format useful for payroll?
Decimal hours simplify wage calculation. Instead of computing hours and minutes separately, 8 hours 15 minutes is converted to 8.25 hours, making it easy to multiply by your hourly rate.
Does this tool deduct break times automatically?
No, this calculator determines total elapsed time between two timestamps. To factor in unpaid lunch breaks, subtract your break duration from the total result.
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Estimate your monthly payment and loan breakdown instantly
ESTIMATED MONTHLY PAYMENT
$2,022.62
Principal Loan Amount:$320,000
Total Interest Payable:$408,142.36
Total Cost of Mortgage:$728,142.36
Mortgage Payment Schedule
(Yearly Loan Breakdown)
Year
Principal (A)
Interest (B)
Balance
📅 2026
$3,584
$20,688
$316,416
📅 2027
$3,824
$20,448
$312,592
📅 2028
$4,080
$20,192
$308,512
📅 2029
$4,354
$19,918
$304,158
📅 2030
$4,646
$19,626
$299,512
📅 2031
$4,957
$19,314
$294,555
📅 2032
$5,289
$18,982
$289,265
📅 2033
$5,644
$18,628
$283,621
📅 2034
$6,022
$18,250
$277,599
📅 2035
$6,426
$17,846
$271,173
📅 2036
$6,857
$17,415
$264,316
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Figures last reviewed: October 2026
Free Online Financial Calculators for the U.S. (2026)
Welcome to FinToolLab.com, a free portal for loan, mortgage, savings, retirement and everyday money calculations. Our tools help you estimate monthly payments, interest costs and long-term savings growth in seconds, with no account and no sign-up.
Every calculator is built by a team of finance and accounting professionals and uses current U.S. figures. Whether you are comparing mortgage offers, planning how much to put into your 401(k), or working out what an hourly wage means per year, you get a clear estimate and a simple explanation of how it was reached.
$24,5002026 employee limit for 401(k), 403(b) and 457(b) plans
$8,000Catch-up contribution for age 50 and older ($11,250 at ages 60 to 63)
$16,1002026 standard deduction, single filers ($32,200 married filing jointly)
$184,5002026 Social Security wage base, the income cap for the 6.2% tax
Sources: IRS and Social Security Administration. Check irs.gov and ssa.gov for the latest official figures.
How a paycheck is calculated in the U.S.
Your gross pay is the amount you earn before anything is taken out. Several deductions come off before the money reaches your bank account.
Gross payYour salary or hourly wages before deductions
→
Taxes and deductionsFederal income tax, state tax, Social Security, Medicare, 401(k) and health insurance
→
Take-home payThe amount deposited into your account
Employees pay Social Security tax of 6.2% on wages up to the annual wage base and Medicare tax of 1.45% on all wages. Together these make up the 7.65% FICA payroll tax. Income tax depends on your filing status and withholding, and state taxes vary: some states, including Texas and Florida, do not tax wage income at all.
Why accurate financial calculators matter
Small differences in rates, limits and assumptions can add up to thousands of dollars over time. A mortgage rate that is half a percentage point higher changes your monthly payment and the total interest you pay over decades. A 401(k) contribution that is a few percent lower can noticeably reduce your balance at retirement.
A good calculator lets you test these choices before you commit. Change the loan term, add an extra payment, or raise your savings rate, and see the effect straight away. That makes it easier to compare options, negotiate with confidence and plan your budget around real numbers instead of guesses.
Use figures from your pay stub, loan offer or account statement. The closer your inputs, the closer the estimate.
Compare scenarios
Change one value at a time, such as the interest rate, the term or the monthly amount, and see what moves the result most.
Confirm before you decide
Treat the result as a planning estimate and confirm the details with your lender, employer or a qualified professional.
Money basics, explained simply
Loans and mortgages
Your monthly mortgage payment usually includes principal, interest, property tax and homeowners insurance. Lenders also look at your debt-to-income ratio, and a common guideline is to keep housing costs near 28% and total debt near 36% of gross income. With a down payment below 20% on a conventional loan, you will often pay private mortgage insurance. Try the Mortgage Calculator or the Auto Loan Calculator to compare terms.
Saving and investing
Compound interest means you earn interest on your earlier interest, so time matters as much as the amount you save. APY includes compounding, which makes it the better figure for comparing savings accounts and CDs, while APR describes the cost of borrowing. See how your money grows with the Savings Calculator, the APY Calculator and the CD Calculator.
Retirement planning
Contributing enough to get your full employer match is one of the simplest ways to build retirement savings. Inflation reduces what your money can buy, so long-term plans should account for it. Use the Retirement Calculator, the 401(k) Calculator and the Inflation Calculator to see whether you are on track.
Frequently asked questions
How accurate are these calculators?
They apply published rates, limits and standard formulas to the numbers you enter, so the results are reliable estimates. Your actual figures can differ because of employer payroll settings, lender fees, credit profile and local taxes.
Do I need to create an account?
No. All calculators are free and work without sign-up. Calculations run in your browser and the numbers you enter are not stored or shared with third parties.
What is the 401(k) contribution limit for 2026?
The employee deferral limit is $24,500. Workers age 50 and older can add a catch-up contribution of $8,000, and those aged 60 to 63 can contribute up to $11,250 as a catch-up. Starting in 2026, higher earners generally have to make catch-up contributions as Roth contributions.
What is the difference between APR and APY?
APR is the yearly cost of borrowing before compounding. APY is the yearly return on savings after compounding is included. Use APR to compare loans and APY to compare savings accounts.
How much house can I afford?
A common starting point is to keep housing costs near 28% of your gross monthly income and total debt payments near 36%. Your down payment, interest rate, property taxes and insurance also matter, so test different scenarios in the Mortgage Calculator.
Are state taxes included in the results?
That depends on the calculator and the inputs you choose. State income tax rules differ widely, and some states do not tax wages at all, so check your state revenue department for exact rates.
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All calculations run anonymously in your browser. Nothing you enter is stored or shared with third parties.
Official sources and disclaimer
For official figures and rules, please consult these government sources:
Our calculators provide estimates for informational purposes only and do not constitute financial, tax or legal advice. Results depend on the information you enter and on your personal situation.
About FinToolLab
Financial calculators you can rely on
FinToolLab is built by a team of finance and accounting professionals. Each calculator gives you a clear, practical estimate for your paycheck, loans, savings or retirement, using current 2026 U.S. figures, so you can make your next money decision with confidence.
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