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View Entry Info: Summer time correction for timer crossing time change applied twice?

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Thread: Summer time correction for timer crossing time change applied twice?

  1. #1
    BefuddledBrian's Avatar
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    Question Summer time correction for timer crossing time change applied twice?

    Look at timer for "World War Z" in the timer list.

    Surely if the code displaying the timer was just ignoring tonight's time change it would show as ending at 01:17.
    If it was corrected it would show as 02:17 (the actual time it ends after the time change).
    But it actually shows as ending at 03:17, as if correction has been applied twice.

    OVCalCorErr.jpg OVCalCorEpg.jpg

    Weirdly "CNN Special Report" further down looks correct.

    I will check tomorrow to make sure they actually recorded correctly.

  2. #2
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    Quote Originally Posted by BefuddledBrian View Post
    Look at timer for "World War Z" in the timer list.

    Surely if the code displaying the timer was just ignoring tonight's time change it would show as ending at 01:17.
    But it isn't ignoring it. there is no 01:17 tonight.
    The times are stored in Epoch time (seconds since 01 Jan 1970) and Linux knows how to display these in your timezone (unlike MS Windows...).

    If it was corrected it would show as 02:17 (the actual time it ends after the time change).
    But it actually shows as ending at 03:17, as if correction has been applied twice.
    Perhaps it has, as the duration show >3hrs, for a 116m minute file + ads.

    Weirdly "CNN Special Report" further down looks correct.
    Might be a result of it starting and ending n the same day, which WWZ does not.

    I will check tomorrow to make sure they actually recorded correctly.
    Recording an extra hour at the end still sounds "OK" to me.
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    If you're not actually interested in whether it's working correctly why bother to reply at all?

  4. #4

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    Did it record properly or do you just want to fight with the world?
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  5. #5

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    Totally lost as getting up this morning feel like an hour behind the scenes
    Must check timers to see if they have changed or if any are set.

  6. #6

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    Any future timers should be fine as long as the epg data was correct in the first place (and that seems to be the case)
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  7. The Following User Says Thank You to ronand For This Useful Post:

    cactikid (28-03-21)

  8. #7

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    British summer time officially started at 01:00 this morning, so hadn't kicked in when the snapshots in post #1 were taken.

    When selected, NTP runs periodically, so will advance the time by 1 hour some time after 01:00 ??

    If you're using transponder time, then I'd guess the time will change at 01:00, but that is clearly still dependent on the broadcasters.

    I use transponder time, but there is still a cron job which runs ntpupdate every 30 minutes.
    Last edited by ccs; 28-03-21 at 11:13.

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    Its nothing to do with ntp or transponder time - the system automatically switches to Summer Time at 1am to 2am. The film was 3 hours long including ad breaks so the timer was set correctly. At 1am the recording end time should have changed to 2.17 but as it seems the displayed time did not reflect this although I am pretty sure the recording did finish at 2.17 SUMMER TIME. We will have to wait till Brian clarifies this.
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  10. #9

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    Quote Originally Posted by ronand View Post
    Its nothing to do with ntp or transponder time - the system automatically switches to Summer Time at 1am to 2am.
    How does it automatically switch??

  11. #10

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    Summer/winter time switching is implemented in most devices with a clock nowadays. My watch and phone both changed by themselves and internet access was disabled on both. Once DST is enabled in a device it will change. Internet is not required. European Summer Time begins at 01:00 UTC/WET (02:00 CET, 03:00 EET) on the last Sunday in March and ends at 01:00 UTC (02:00 WEST, 03:00 CEST, 04:00 EEST) on the last Sunday in October each year.
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  12. #11

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    .... so how do I set up a ViX box to "automatically switch" to BST ?

  13. #12

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    Just set your timezone correctly
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  14. #13

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    Quote Originally Posted by ronand View Post
    Just set your timezone correctly
    So NTP uses the timezone to set the correct time?

  15. #14

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    Indeed it does. NTP uses UTC (it is global) - so the timezone offset set by the user is needed to set the correct time

    Edit: Maybe I should have said that NTP uses UTC - the receiver or any other device using a NTP server uses the timezone offset to get the correct local time.
    Last edited by ronand; 28-03-21 at 12:10.
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  16. #15

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    So when you said "Its nothing to do with ntp or transponder time...", it actually is.

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