📅Date & Time

ISO 8601 Duration

Representing a length of time (duration) using ISO 8601.

Explanation

Durations are represented by the format P[n]Y[n]M[n]DT[n]H[n]M[n]S, where P starts the duration and T precedes the time components.

Examples

1 Hour 30 Mins
Output
PT1H30M
2 Days 5 Hours
Output
P2DT5H
1 Year
Output
P1Y

Code Examples

Template 
// Example: 1 hour, 30 minutes, 15 seconds
const duration = 'PT1H30M15S';

💡 Tips

  • P is the duration designator (Period)
  • T is the time designator
  • Zero-value components can be omitted

⚠️ Common Pitfalls

  • M can mean months OR minutes (position relative to T matters)
  • Durations don't represent a specific point in time
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