Čas a datum Kalkulačky
Calculate date differences, exact age, and time between events. Enter two dates — see days, weeks, months, and years between them. Free.
Výpočty času a data zpracovávají časová pásma, přestupné roky, pracovní dny, trvání data, výpočty věku a převod mezinárodního formátu data.
Procházet podle typu
Time Arithmetic
Add, subtract, and multiply time values with precision — results in HH:MM:SS, decimal hours, and ISO 8601 duration format.
7 kalkulaček
Date Computations
Date difference calculations, age computation, weekday determination, and Julian/Gregorian calendar arithmetic with leap-year handling.
6 kalkulaček
Duration Conversions
Convert between time units (seconds through years) using exact conversion factors. Handles edge cases like average vs. calendar months.
14 kalkulaček
Time Arithmetic
Zobrazit všeKalkulačka hodin
Add and subtract hours and minutes for scheduling. Enter time values — see total duration with decimal hours conversion. Free.
Kalkulačka hodin a minut
Perform time arithmetic with hours and minutes. Enter your times — see the total with AM/PM format and decimal conversion. Free.
Kalkulačka času
Add, subtract, multiply, and divide time values. Enter your hours and minutes — see the result with decimal conversion. Free.
Kalkulačka pracovních hodin
Calculate total work hours for any period. Enter start and end times with breaks — see regular hours, overtime, and weekly totals. Free.
Odpočítávací časovač
Count down to any future date or event. Enter the target date — see days, hours, minutes, and seconds remaining. Free.
Stopky
Use a digital stopwatch with lap tracking. Enter laps — see split times, total time, and fastest/slowest lap comparison. Free.
Date Computations
Zobrazit všeKalkulačka věku
Vypočítejte přesný věk v letech, měsících, dnech, hodinách a minutách. Zadejte datum narození a zobrazte svůj přesný věk a příští narozeniny.
Kalkulačka rozdílu dat
Calculate the exact number of days, weeks, and months between two dates. Enter start and end date — see all units with weekday count. Free.
Kalkulačka datumů
Add or subtract days, weeks, or months from any date. Enter a date and duration — see the resulting date with day of week. Free.
Pracovní a kalendářní dny
Count days between dates with business days option. Enter start and end dates — see total days, business days, and weekends. Free.
Den v týdnu
Find the day of the week for any date in history or the future. Enter the date — see day name, day number, week number, and calendar facts. Free.
Kolik mi je let?
Calculate your exact age in years, months, days, hours, and minutes. Enter date of birth — see precise age with next birthday countdown. Free.
Duration Conversions
Zobrazit všeČas na desetinné číslo
Convert time in hours and minutes to decimal hours. Enter HH:MM — see decimal hours for timesheet, billing, and payroll calculations. Free.
Desetinné číslo na čas
Convert decimal hours to hours and minutes. Enter decimal time (e.g. 2.75) — see HH:MM format for timesheets and billing. Free.
Převodník vojenského času
Convert between 12-hour and 24-hour (military) time. Enter either format — see the other with AM/PM and 24h equivalents. Free.
Hodiny na minuty
Convert hours to total minutes. Fast and accurate result with formula, step-by-step method and unit overview. Free tool.
Minutes to Hours
Convert minutes to hours and remaining minutes. Fast and accurate result with formula, step-by-step method and unit overview. Free tool.
Minutes to Decimal Hours
Convert minutes to decimal hours for timesheets and payroll. Enter minutes — see decimal hours with formula and step-by-step breakdown. Free tool.