Most computer and telecommunication equipment used at NASA HQ will
update automatically during changes in Daylight Saving Time twice a
year. If you find the clock on your device has not updated correctly,
try disconnecting from the HQ network and then log back in. Instructions
for manually adjusting the time on some devices are provided below.

[Please note]{.underline}: It is no longer possible for Windows users to
manually adjust the date and time on Windows computers. For assistance,
call the [IT Help Desk](https://www.odin.lmit.com/hq/hqhelpdesk.html) at
358-HELP (4357) or 1‑866-4NASAHQ (462‑7247) or [send an
e-mail](mailto:service@hq.nasa.gov).

> **[Devices That Update Automatically]{.underline}**
>
> [Computers]{.underline}
>
> \- Windows XP workstations
>
> \- [Macintosh workstations (OS X)](#Macs)
>
> \- Laptops
>
> \- Tablets
>
> [Telephones]{.underline}
>
> \- VoIP desktop phones
>
> \- Cell phones
>
> [Other]{.underline}

\- BlackBerry devices

\- Treo devices

**[DDevices That DO NOT Update Automatically]{.underline}**

[ISDN Phones](#ISDN)

[Tone Commander Phones](#tone_commander)

[]{#Macs .anchor}**How to Manually Adjust Time on Macintosh Computers
(OS X)**

These workstations should automatically synchronize to the proper time
during the change to/from Daylight Saving Time. Upon boot-up of your
machine, you may receive a message similar to the following: \"Your
clock does not agree with KeyServer\'s. Do you want your clock set?\"
Click \"SET CLOCK\" and you are done.

If the time on your Macintosh computer is not automatically reset:

1.  **Click** on the [Date/Time display]{.underline} in the upper right
    corner of the screen, and pull down the menu. Select the menu item
    \"**Open Date & Time...**\"

> ![](media/image3.jpeg){width="2.5569444444444445in"
> height="1.2930555555555556in"}

2.  A Control Panel window labeled \"Date & Time\" will open. In that
    window, there will be three buttons: \"**Date & Time**,\" \"**Time
    Zone**,\" and \"**Clock**.\" If it is not already selected,
    [click]{.underline} the \"**Date & Time**\" button.

3.  **Click** to put a *checkmark*  in the box marked \"**Set Date &
    Time Automatically**.\" **Click** on the pull down list, and select
    \"**Apple Americas/U.S. (time.apple.com)**.\"

![](media/image4.jpeg){width="4.281944444444444in"
height="3.185416666666667in"}

4.  **Click** on the \"**Time Zone**\" button. **Click** to pull down
    the list labeled \"Closest City\" and select \"Washington, D.C. --
    U.S.A.\"

![](media/image5.jpeg){width="4.113888888888889in"
height="3.098611111111111in"}

5.  (Optional) Click on the \"**Clock**\" button. Here you can change
    various aspects of the display of the time to personalize your
    preferences.

![](media/image6.jpeg){width="4.402777777777778in"
height="3.290277777777778in"}

6.  Close the \"Date & Time\" window by clicking on the circle button in
    the left corner of the window, or by type the keystroke **CMD + W**.
    Your time display is set.

[]{#tone_commander .anchor}**How to Manually Adjust Time on Tone
Commander Telephone Sets**

1.  ![](media/image7.jpeg){width="1.875in" height="1.75in"}Press the
    **Setup** button. The \"Setup Menu\" will appear on the display.

2.  Press the softkey below the display item \"User.\" (The softkey
    button is the button with the \"up arrow/triangle\" symbol.)

3.  Press the softkey below \"Clock.\"

4.  Press the **More►** button 6 times so that the hour field is
    flashing.

5.  Set the time using the telephone number keypad.

6.  When the correct month, day, hour, and minute appear on the screen,
    press the **Done** button.

7.  Press the Done button twice more to return to the standard window.

[]{#ISDN .anchor}**How to Manually Adjust Time on ISDN Telephone Sets**

1.  ![](media/image8.jpeg){width="1.5104166666666667in"
    height="1.75in"}Press the **Menu** button. The menu will appear on
    the display.

2.  Press the softkey button below the display item \"Option.\" (Note:
    The softkey button is the button with the \"up arrow/triangle\"
    symbol.) The menu items will change on the display.

3.  Press the softkey below \"Clock.\"

4.  Press the \"Next\" button 3 times so that the hour field is
    flashing.

5.  Use the - and + softkeys to adjust the clock.

6.  When the correct month, day, hour, and minute appear on the screen,
    press the softkey below the display item \"Done.\"

7.  Press the softkey below \"Done\" again, then press the **Menu**
    button to save the new time and return to the standard window.