Daylight Savings time and the S9

[DoriC]

Thank you Slinky, I feel better now so will keep my hands of the buttons and patiently wait for April to come around again!

[moresleep]

Speaking of changing time, my legacy Respironics AutoSV doesn't let you do that. It has an internal clock set to GMT at the factory, and that's that. Unfortunately, the clock is now hours off. I correct for it somewhat by setting the wrong time zone in the Encore Pro software. I like many things about this machine, but have to say this clock thing is insane...

[chunkyfrog]

I don't bother.
I'm just too lazy. . .

[ozze_dollar]

Why bother??? does it wake you up in the morning???

[fuzzy96]

does it reallymatter? http://science.discovery.com/tv/through ... -illusion/

[Slinky]

Dori, I "think" that "winter time" is the "right" time and daylight savings time is the "cheating" time. Who really remembers any more? Oh! Yeah! DST is the "phony" time.

[ArizonaGUy]

Unrelated to CPAP settings, studies of DST have shown in a modern, high tech world there's negligible energy saving from it. The idea is that by shifting daylight to the evening hours in the summer, less energy is used in the home - meaning lighting and small appliances. If you're home, you'll use the inefficient light bulbs less. Because it's light out, you're more likely to be outdoors and therefore less energy overall is used in the home. That's based on a 35 year old study, however. Today people have endless electronics and computer devices connected 24/7 and home lighting efficiency has increased exponentially, moving from incandescent bulbs to fluorescent lighting and now LED.

In 2007, daylight time in the US changed by three weeks. It moved two weeks earlier from last Sunday to the second Sunday. It ended one week later, moving from the last Sunday of October to the first Sunday of November. That February was a horrible time to be working in IT for a large bank. Thousands of systems and the applications installed all had to be patched to reflect the new schedule the government had implemented. A 2009 study confirmed the additional four weeks had little to no effect on national energy usage. But we'll never switch back as doing so would be equally pointless and a great number of additional man hours would go into patching computer systems all over again.

I hate daylight time so much and with the myriad schedules that differ around the globe it causes a moderate annoyance for business several times a year.

CPAP related - I live in Arizona so I don't worry about resetting clocks generally. But I do travel a significant amount, more than just within the US. It's nice to have graphs that show me sleeping at correct times so I can refer back to the charts without confusion. Consider that New Zealand is 19 or 20 hours ahead of Arizona, western Europe is 8 or 9 ahead and Hawaii is 3 hours behind (all depending on DST schedules), accurate time as well as dates are useful. I realize this doesn't apply to perhaps the majority on this board but there is definitely a target audience where this is quite important.

[Slinky]

Imagine how much energy savings there would be in the US alone if everyone would turn off their standby appliances and equipment every day when not using them or at least overnight.

[Perrybucsdad]

(At least they aren't claiming the wrong time setting will kill you... )

Ahhh... yes, but just remember to change out the Summer Air for the Winter Air in your car tires. Most people forget to do that and it is a safety issue on the road. Any good tire dealer can help you. Or call me, I'll be glad to take your money and fix this for you. (this is a joke people... there is no need to change out the air in your tires)

[Tip10]

(At least they aren't claiming the wrong time setting will kill you... )

Ahhh... yes, but just remember to change out the Summer Air for the Winter Air in your car tires. Most people forget to do that and it is a safety issue on the road. Any good tire dealer can help you. Or call me, I'll be glad to take your money and fix this for you. (this is a joke people... there is no need to change out the air in your tires)

Actually -- joke that it may be there is a shred of "truth" to it. For every 10 degrees change in ambient temperature there is about a 1 PSI change in tire pressure --- Soooo, if the last time you checked your tire pressure was during the 90's of summer (summer air?) and you are now looking at the 30's of winter (winter air?) there's a strong possibility your tires are under-inflated. So, change out that summer air for winter air!

[idamtnboy]

Tonight's the night!!
Bump so those who are interested and haven't seen it yet, will.

[Lizistired]

I'm not doing anything until tomorrow afternoon, after I download. In the spring all my data was there but there was a gap where it moved half the night forward an hour. I still wonder if Resmed or Resscan attempts to adjust for DST.

[apneawho]

I set mine back to 1334 at 1434 today. I think that should work.

[idamtnboy]

I'm not doing anything until tomorrow afternoon, after I download. In the spring all my data was there but there was a gap where it moved half the night forward an hour. I still wonder if Resmed or Resscan attempts to adjust for DST.

I think when I reviewed the thread from last spring the ones who had data display glitch were the ones who changed on Sunday. Maybe I remember wrong, but that's why I recommended changing either today or Monday, but not Sunday. I don't recall anyone having problems last fall with Resscan displaying the data with a gap or overlap, but we've had a version change since then so who knows?

Maybe I should go back and review the discussion last fall. All I remember for sure was I tried to make the change after midnight & before 1 am on Sat night and things got screwed up. Ended up having to lose one day of data completely.

[archangle]

Generally speaking Respironics machines cannot be changed from GMT time.

Heck, Respironics machines can't be changed from an incorrect time to the correct time unless you have a proprietary cable not available to users and software that Respironics doesn't let the users have.