SECOND Function in Excel: Second From a Time

⏱ 1 min readUpdated 28 September 2026

DateLevel: BeginnerAvailable in: Excel 2007+

In this article
  1. Syntax
  2. Examples
  3. Example 1
  4. Related functions

SECOND returns 0–59. Mostly used to strip seconds from machine timestamps.

Syntax

=SECOND(serial_number)
Argument What it means
serial_number Time.

Examples

Example 1

=A2-TIME(0,0,SECOND(A2))

Timestamp rounded down to the minute.

HOUR · MINUTE

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