Narrative:

I saw this issue on a trip shortly after the time changed to daylight saving time [and] I thought [it] warranted attention. It's an issue with jeppesen flitedeck pro (jepp FD pro) and it seems there's been little response. I wasn't sure where else to take this.before the transition from the paper charts; non-continuously operated control tower's hours of operation were found on the inner tab of the low altitude enroute chart. It was clearly listed in local time; irrespective of daylight saving time. Now that we've transitioned to jepp FD pro; one can press and hold on the class D airspace for the airport in question. (Let's use ism as an example). For ism; when we tap and hold over the ism class D; we see the hours listed as '12:00 to 03:00 - every day'. No label is attached to that time. So one might logically assume it's in zulu time; [thus] yielding local summertime hours as 0800 to 2300 local. Evidently; this is incorrect [because]; if one goes to the low altitude enroute chart in comply on our ipads; it is listed as 0700-2200 local. If one goes to the AFD listing for ism; we see that its time zone is -0500; which would yield local tour hours of 0700-2200. This is correct; but completely counter-intuitive [because] ism is in the eastern time zone. For all other summer time calculations; ism (and eastern time in general) is a -0400 adjustment from zulu. This seems to be an unnecessary obfuscation of what was a very simple lookup on the paper chart. Currently our company has the jeppesen low altitude enroute charts. However; there is no reference to find what chart holds the airport one is looking for. Use the example at hand; ism; go find which chart it's in. Yea; it's a complete hassle; especially if its outside the special case of airports in the northeast/southeast charts.I requested there be a blast email to the pilot group to highlight this issue. I haven't seen one yet. To me this is an issue that warrants some sort of informational heads up to the pilot group. I also feel this warrants a change in the jeppesen application such that; when one does the press and hold over the airspace; the tower hours are listed in local time; as was done on the paper charts. Even better; how about jeppesen (and FAA on the DOT charts) put the tower hours on the 10-9 (airport diagram) chart so we don't have to do all this digging around. Thank you for your time.

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Original NASA ASRS Text

Title: Captain reported that the Jeppesen FliteDeck Pro application obfuscates the airport operation hours are not clear and fail to reference what chart holds specific airport diagrams.

Narrative: I saw this issue on a trip shortly after the time changed to daylight saving time [and] I thought [it] warranted attention. It's an issue with Jeppesen FliteDeck Pro (Jepp FD Pro) and it seems there's been little response. I wasn't sure where else to take this.Before the transition from the paper charts; non-continuously operated control tower's hours of operation were found on the inner tab of the low altitude enroute chart. It was clearly listed in local time; irrespective of daylight saving time. Now that we've transitioned to Jepp FD Pro; one can press and hold on the class D airspace for the airport in question. (Let's use ISM as an example). For ISM; when we tap and hold over the ISM class D; we see the hours listed as '12:00 to 03:00 - Every Day'. No label is attached to that time. So one might logically assume it's in Zulu time; [thus] yielding local summertime hours as 0800 to 2300 local. Evidently; this is incorrect [because]; if one goes to the low altitude enroute chart in comply on our iPads; it is listed as 0700-2200 local. If one goes to the AFD listing for ISM; we see that its time zone is -0500; which would yield local tour hours of 0700-2200. This is correct; but completely counter-intuitive [because] ISM is in the Eastern Time zone. For all other summer time calculations; ISM (and eastern time in general) is a -0400 adjustment from Zulu. This seems to be an unnecessary obfuscation of what was a very simple lookup on the paper chart. Currently our Company has the Jeppesen low altitude enroute charts. However; there is no reference to find what chart holds the airport one is looking for. Use the example at hand; ISM; go find which chart it's in. Yea; it's a complete hassle; especially if its outside the special case of airports in the NE/SE charts.I requested there be a blast email to the pilot group to highlight this issue. I haven't seen one yet. To me this is an issue that warrants some sort of informational heads up to the pilot group. I also feel this warrants a change in the Jeppesen application such that; when one does the press and hold over the airspace; the tower hours are listed in local time; as was done on the paper charts. Even better; how about Jeppesen (and FAA on the DOT charts) put the tower hours on the 10-9 (airport diagram) chart so we don't have to do all this digging around. Thank you for your time.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.