| --- |
| page_title: timeadd - Functions - Configuration Language |
| description: |- |
| The timeadd function adds a duration to a timestamp, returning a new |
| timestamp. |
| --- |
| |
| # `timeadd` Function |
| |
| `timeadd` adds a duration to a timestamp, returning a new timestamp. |
| |
| ```hcl |
| timeadd(timestamp, duration) |
| ``` |
| |
| In the Terraform language, timestamps are conventionally represented as |
| strings using [RFC 3339](https://tools.ietf.org/html/rfc3339) |
| "Date and Time format" syntax. `timeadd` requires the `timestamp` argument |
| to be a string conforming to this syntax. |
| |
| `duration` is a string representation of a time difference, consisting of |
| sequences of number and unit pairs, like `"1.5h"` or `"1h30m"`. The accepted |
| units are `"ns"`, `"us"` (or `"µs"`), `"ms"`, `"s"`, `"m"`, and `"h"`. The first |
| number may be negative to indicate a negative duration, like `"-2h5m"`. |
| |
| The result is a string, also in RFC 3339 format, representing the result |
| of adding the given direction to the given timestamp. |
| |
| ## Examples |
| |
| ``` |
| > timeadd("2017-11-22T00:00:00Z", "10m") |
| 2017-11-22T00:10:00Z |
| ``` |
| |
| # Related Functions |
| |
| * [`timecmp`](/language/functions/timecmp) determines an ordering for two timestamps. |
