# Memorandum for US Owners and Operators Using GPS to Obtain UTC Time

**URL:** <https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417>\
**Category:** Professional Mariner Forum\
**Created:** [January 23, 2019, 5:43pm UTC](https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417 "2019-01-23T17:43:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Capt\_Phoenix](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/capt_phoenix/32/281_2.png) [@Capt\_Phoenix](https://forum.gcaptain.com/u/Capt_Phoenix)\
**Post date:** [January 23, 2019, 5:43pm UTC](https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417/1 "2019-01-23T17:43:16Z")

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[https://ics-cert.us-cert.gov/Memorandum-US-Owners-and-Operators-Using-GPS-Obtain-UTC-Time](https://ics-cert.us-cert.gov/Memorandum-US-Owners-and-Operators-Using-GPS-Obtain-UTC-Time)

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**Author:** ![jimrr](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/jimrr/32/38358_2.png) [@jimrr](https://forum.gcaptain.com/u/jimrr)\
**Post date:** [January 25, 2019, 5:43pm UTC](https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417/2 "2019-01-25T17:43:57Z")

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listening to the national institute of standards and tech. radio station WWV broadcasts one can see a cell phone may be off by large fractions of a second.  
if you’re interested the Time/standard time interval is broadcast continuously and the minit is stated every minit on 2.5, 5, 10, 15 and 20 MHZ.

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**Author:** ![dbeierl](https://sea2.discourse-cdn.com/flex016/user_avatar/forum.gcaptain.com/dbeierl/32/11833_2.png) [@dbeierl](https://forum.gcaptain.com/u/dbeierl)\
**Post date:** [January 25, 2019, 5:51pm UTC](https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417/3 "2019-01-25T17:51:54Z")

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> [@jimrr](#):
>
> every minit on 2.5, 5, 10, 15 and 20 MHZ.

And if it’s a man’s voice you’re hearing WWV in Fort Collins, Colorado. If it’s a woman’s voice it’s WWVH in Hawaii.

But then there’s this: [Shutting down WWV, WWVH and WWVB](https://www.dailykos.com/stories/2018/9/17/1796554/-Shutting-down-WWV-WWVH-and-WWVB)

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**Author:** ![powerabout](https://avatars.discourse-cdn.com/v4/letter/p/43a26b/32.png) [@powerabout](https://forum.gcaptain.com/u/powerabout)\
**Post date:** [January 26, 2019, 7:04am UTC](https://forum.gcaptain.com/t/memorandum-for-us-owners-and-operators-using-gps-to-obtain-utc-time/50417/4 "2019-01-26T07:04:19Z")

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just for your info its only in seconds but GPS time is not UTC time at the moment.  
If it matters make sure you know which one you are using