Time Converter

Free Online Time Converter

This tool supports conversion between common time units including second, millisecond, microsecond, nanosecond, minute, hour, day, week, month, and year. Enter a value in any unit to see results in all other units in real time. All data is processed locally in your browser — nothing is uploaded to any server, fully protecting your privacy.

Features

• Supports 10 common time unit conversions
• Covers everyday and scientific units
• All units displayed simultaneously with real-time sync
• Automatic scientific notation for very large or small values
• One-click copy of conversion results
• Pure frontend offline processing, protects user privacy

Common Conversion Formulas

• 1 min = 60 s
• 1 h = 3600 s
• 1 day = 86400 s
• 1 year = 365 days
• 1 ms = 0.001 s

Common Reference Values

• 1 hour = 3600 seconds
• 1 day = 86400 seconds
• 1 year ≈ 3.156×10⁷ seconds
• 1 millisecond = 0.001 second

How to Use

1. 1Click on any unit card's input field
2. 2Enter a value, other units update in real time
3. 3Click the copy button to copy conversion results