Mac User Guide
- Welcome
- What’s new in macOS Tahoe
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- Intro to Apple Intelligence
- Translate messages and calls
- Create original images with Image Playground
- Create your own emoji with Genmoji
- Use Apple Intelligence with Siri
- Find the right words with Writing Tools
- Summarize notifications and reduce interruptions
- Use ChatGPT with Apple Intelligence
- Apple Intelligence and privacy
- Block access to Apple Intelligence features
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- Intro to Continuity
- Use AirDrop to send items to nearby devices
- Hand off tasks between devices
- Control your iPhone from your Mac
- Copy and paste between devices
- Stream video and audio with AirPlay
- Make and receive calls and text messages on your Mac
- Use your iPhone internet connection with your Mac
- Share your Wi-Fi password with another device
- Use iPhone as a webcam
- Insert sketches, photos, and scans from iPhone or iPad
- Unlock your Mac with Apple Watch
- Use your iPad as a second display
- Use one keyboard and mouse to control Mac and iPad
- Sync music, books, and more between devices
- Resources for your Mac
- Resources for your Apple devices
- Copyright and trademarks
Change Date & Time settings on Mac
Use Date & Time settings to set or change the date and time on your Mac. When the date and time are correct, time stamps on emails, messages, and files are accurate. Learn how to set the date and time.
To change these settings, choose Apple menu 
in the sidebar, then click Date & Time. (You may need to scroll down.)
Open Date & Time settings for me
Date & Time options
Option | Description | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Set time and date automatically | Have the date and time on your Mac set automatically using a network time server. Click Set, then type the address of your network time server. If your Mac isn’t connected to the internet, it connects when you choose this option. | ||||||||||
Date and time | View the date and time automatically set on your Mac. To manually set the date and time on your Mac, turn off “Set date and time automatically,” click Set, enter the date and time, then click Set. | ||||||||||
24-hour time | Use a 24-hour format for the time shown in the menu bar. For example, instead of 3:00 PM, show 15:00. | ||||||||||
Set time zone automatically using your current location | Have the time zone on your Mac set automatically based on your current location. Note: Location Services must be turned on in order to determine your current location. See Change Privacy & Security settings. | ||||||||||
Time zone | The time zone automatically set on your Mac. To manually set the time zone on your Mac, turn off “Set time zone automatically using your current location,” enter a city in the bottom text field, then press Return. | ||||||||||
Closest city | A major city in your desired time zone. To change the city, turn off “Set time zone automatically using your current location,” enter a city in the text field, then press Return. | ||||||||||
You can choose how the date and time appear in the menu bar. See Change Control Center settings.
To choose the formats used to show dates and times in other languages on your Mac, see Change how dates, times, and more appear.
Tip: Click the date and time in the menu bar to open Notification Center. See Use Notification Center.