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[deleted] t1_iwz4iso wrote

Reply to comment by FIicker7 in The leap second’s time is up: world votes to stop pausing clocks by 1r0ut3

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FIicker7 t1_iwz4w3p wrote

That's a great question. I'm glad you asked.

If my memory serves me correctly (I can look into finding a source if you want),

modern digital banking relays on an encryption that uses the GPS system to encrypt and verify transactions.

Edit: Oh and the Clocks on your phone are GPS time and their isn't an easy way to change this because your phone also uses GPS for navigation. So in a 10 or 15 years the clocks on your phone will be noticeably off.

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drysart t1_iwz9oib wrote

> Oh and the Clocks on your phone are GPS time and their isn't an easy way to change this

Sure there is. Go to settings and turn off automatic time setting. Then you can set the clock on your phone to any date and time you want.

Just because your phone uses GPS for navigation doesn't imply that it uses GPS for any other purposes, including setting the clock. It can, and you probably want it to, but literally nothing says it has to.

And even if you do continue to use GPS to sync your clock, your clock will not be off in 10-15 years because GPS time doesn't use leap seconds, so there's already an offset that gets applied to your clock when syncing time from the GPS signal -- currently this is 18 seconds, so your phone's clock is 18 seconds off from what GPS says it should be. And all this change means is that the offset won't need to continue to be manually changed in the future as leap seconds get abandoned entirely.

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outlawsix t1_iwz9fjo wrote

We keep saying "one minute in 100 years" but uh.... that's more than half a second every year and that's not good where precision matters

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ric2b t1_ix3397q wrote

>modern digital banking relays on an encryption that uses the GPS system to encrypt and verify transactions.

This sounds ridiculous, do you have a source for that?

>So in a 10 or 15 years the clocks on your phone will be noticeably off.

By like... 15s

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