[Home](./index.md) > [puppeteer](./puppeteer.md) > [Page](./puppeteer.page.md) > [emulateTimezone](./puppeteer.page.emulatetimezone.md) ## Page.emulateTimezone() method Signature: ```typescript emulateTimezone(timezoneId?: string): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | timezoneId | string | Changes the timezone of the page. See [ICU’s metaZones.txt](https://source.chromium.org/chromium/chromium/deps/icu.git/+/faee8bc70570192d82d2978a71e2a615788597d1:source/data/misc/metaZones.txt) for a list of supported timezone IDs. Passing null disables timezone emulation. | Returns: Promise<void>