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Sources and Accuracy
Time conversions use second as the reference unit. Calendar-style values such as average month and average Gregorian year are approximate by definition.
Displayed results are rounded for readability. The calculator keeps enough precision for everyday use and switches to scientific notation for very large or very small values. Last reviewed: 2026-05-21.
About These Units
decade [dec]
Definition
The decade (dec) is a time unit used to express measurements in this converter.
History
This unit is included because it appears in practical measurement systems, technical references, product specifications, or everyday conversion needs.
Current use
Use decade when comparing time values, checking specifications, converting between systems, or preparing quick estimates.
minute [min]
Definition
The minute is a time unit equal to 60 seconds.
History
Minutes come from sexagesimal timekeeping, where hours are divided into 60 parts.
Current use
Minutes are used for schedules, cooking, travel, workouts, calls, meetings, and timing tasks.