pxt-calliope/docs/reference/input/running-time.md
Juri Wolf 5f7a8e5301
Updates for V4 (#197)
* update yotta defaults for 16kb devices

* refactor deprecated blocks

* updates for button events

* update button events

* update refference

* update docs

* update docs

* update button event blocks

* update docs

* update block id
2022-08-10 09:36:19 -07:00

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Markdown

# Running Time
Find how long it has been since the program started in milli-seconds.
```sig
input.runningTime();
```
## Returns
* the [Number](/types/number) of milliseconds since the program started.
(One second is 1000 milliseconds.)
## Example: elapsed time
When you press button `B` on the microbit, this
program finds the number of milliseconds since the program started
and shows it on the [LED screen](/device/screen).
```blocks
input.onButtonEvent(Button.B, input.buttonEventClick(), () => {
let now = input.runningTime()
basic.showNumber(now)
})
```
## See also
[show number](/reference/basic/show-number), [pause](/reference/basic/pause)