> For the complete documentation index, see [llms.txt](https://soufatn.gitbook.io/rxjs-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://soufatn.gitbook.io/rxjs-book/summary/observable/observable_instance_methods/bufferwithtime.md).

# bufferWithTime

Projects each element of an observable sequence into zero or more buffers which are produced based on timing information.

## Arguments

1. `timeSpan` *(`Number`)*: Length of each buffer (specified as an integer denoting milliseconds).
2. `[timeShift]` *(`Number`)*: Interval between creation of consecutive buffers (specified as an integer denoting milliseconds).
3. `[scheduler=Rx.Scheduler.timeout]` *(`Scheduler`)*: Scheduler to run buffer timers on. If not specified, the timeout scheduler is used.

## Returns

*(`Observable`)*: An observable sequence of buffers.

## Example

### Without a skip

### Using a skip