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Monday 10 February 2025
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Duration Specification in ISO 8601 Format

The duration specification in ISO 8601 format is essential for representing time intervals in a standardized manner. Below, we show you how to do it simply.

What Is the ISO 8601 Format?

ISO 8601 is an international standard that defines the representation of dates and durations. In this case, we will focus on the duration specification.

Specifying Duration

To specify a duration in ISO 8601 format, use the format P[nY][nM][nD][T[nH][nM][nS]]:

P3Y6M4DT12H30M5S

In this example, the duration is 3 years, 6 months, 4 days, 12 hours, 30 minutes, and 5 seconds.

Format Components

The format components include:

  • P: Indicates the duration (period).
  • Y: Years.
  • M: Months.
  • D: Days.
  • T: Separator for the time part.
  • H: Hours.
  • M: Minutes.
  • S: Seconds.

Practical Example

Let's see a practical example of how to use this notation in a programming context:

const duration = 'P2DT4H30M';

In this case, the duration is 2 days, 4 hours, and 30 minutes.

Conclusions

The duration specification in ISO 8601 format provides a consistent and clear way to represent time intervals. Be sure to use this standard in your projects for greater coherence and understanding.

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Jorge García

Fullstack developer