# How to Change the Time Zone in Ubuntu Using the Terminal

https://www.hostcarts.qa/knowledgebase/article/how-to-change-the-time-zone-in-ubuntu-using-the-terminal

## **1. Check the Current Time Zone**

Start by verifying your server’s current time, date, and time zone:

Code

```
timedatectl
```

This command displays:

- Local time
- Universal time (UTC)
- Current time zone
- NTP synchronization status

This helps confirm whether a change is required.

## **2. List All Available Time Zones**

Ubuntu includes hundreds of time zones. To view the full list:

Code

```
timedatectl list-timezones
```

If you want to filter by region (e.g., Asia):

Code

```
timedatectl list-timezones | grep Asia
```

This makes it easier to find the exact zone you need, such as **Asia/Kolkata**.

## **3. Set a New Time Zone**

Once you identify the correct time zone, apply it using:

Code

```
sudo timedatectl set-timezone Region/City
```

Examples:

Code

```
sudo timedatectl set-timezone Asia/Kolkata
sudo timedatectl set-timezone America/New_York
sudo timedatectl set-timezone UTC
```

The change is applied instantly and does not require a reboot.

## **4. Verify the Updated Time Zone**

Run the following again to confirm:

Code

```
timedatectl
```

You should now see the updated time zone reflected in the output.

## **5. Alternative Method (If timedatectl Is Not Available)**

Some minimal installations or containers may not include `timedatectl`. In such cases, you can reconfigure the time zone using:

Code

```
sudo dpkg-reconfigure tzdata
```

This opens a menu-based interface where you can select your region and city.

## **6. Manual Method (Advanced Users)**

You can also manually link the appropriate zoneinfo file:

Code

```
sudo ln -sf /usr/share/zoneinfo/Region/City /etc/localtime
```

Example:

Code

```
sudo ln -sf /usr/share/zoneinfo/Asia/Kolkata /etc/localtime
```

This method is less common but useful in restricted environments.