There is already a Duration.plus method which allows to add two durations together.

However, there is no Duration.minus.

Use Case

Ability to subtract one duration from another.

For example, a CloudWatch trigger that executes a lambda every 5 minutes.

At the same time, I want to avoid race conditions, so I want to set the Lambda timeout to slightly less than 5 minutes.

Proposed Solution

const ruleSchedule = Duration.minutes(5)
const lambdaTimeout = ruleSchedule.minus(Duration.seconds(10))

Other

I tried creating a Duration with a negative value, to then do simple math, but that is not allowed.

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

This is a 🚀 Feature Request