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# How to change time sync - time interval in windows
- URL: https://blog.jsinh.in/how-to-change-time-sync-time-interval-in-windows/
- Published: 2014-10-31T10:16:33.000Z
- Updated: 2026-07-07T15:09:56.000Z
- Author: Jsinh
- Tags: #Import 2026-10-04 19:16

The date time of your PC (specific for windows) sync with one of the listed NTP server.

This time sync happens every 7 days and with `time.windows.com` by default.

![Time sync - Internet time](https://blob.jsinh.in/media/2014/10/31/SS02-TimeSync.png)

You can also manually sync or update your time.

To do that:

Click on your system time > "Change date time settings" > "Internet Time" tab > "Change settings and click on Update now to sync.

![Time sync manually](https://blob.jsinh.in/media/2014/10/31/SS01-TimeSync.png)

You can also resync time from command prompt by using command line utility called `w32tm`:

`cmd> w32tm /resync`

![Command line time sync](https://blob.jsinh.in/media/2014/10/31/SS03-TimeSync.png)

The default time to automatically sync time with any NTP server is `604800` seconds which is 7 days if you convert.

You can change this settings by making edits to REGISTRY using `regedit`.

**Warning:** Always backup your current registry state before making any changes.

The key to change the auto time sync - time interval settings is located at:

`HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient`

The key type is `DWORD` and default value is `604800` (decimal) and `0x00093a80` (hexadecimal) - key name is **`SpecialPollInterval`**, change the value to `86400` to auto time sync every day.

![Change time interval - auto time sync](https://blob.jsinh.in/media/2014/10/31/SS04-TimeSync.png)