Numbers & Dates Tools

Unix Timestamp Converter

Convert between Unix timestamps and human-readable dates.

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Timestamp → Date

Unix Timestamp (s or ms)

Date → Timestamp

Date & Time

Date Difference Calculator

Calculate the difference between two dates in multiple units.

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Start Date

End Date

Number Base Converter

Convert numbers between Binary, Octal, Decimal, Hex, Base-32, and Base-36. Click any result to copy.

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Input Number

Input Base

Byte Size Calculator

Convert between byte units. SI (decimal) and IEC (binary) standards.

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Value

Unit

SI (Decimal, powers of 10)

IEC (Binary, powers of 2)

Common File Sizes Reference