What is second?

The second is the SI base unit of time. It is used globally in science, engineering, computing, and everyday life, and is the foundation upon which all other time units are built.

What is millisecond?

A millisecond is a unit of time equal to one thousandth of a second. It is used in computing, networking, audio and video processing, and measuring reaction times and signal latencies.

Worked examples

1 second = 1,000 millisecond

1 millisecond = 0.001 second

More Time conversions

• Convert second to minute
• Convert second to hour
• Convert second to day
• Convert second to week
• Convert second to year (365 d)
• Convert second to millisecond
• Convert second to microsecond
• Convert second to nanosecond
• Convert second to century (100 yr)

Assumption: year is defined as 365 days and century values are approximate.