Frequently-Asked Questions

Purchase & Download





Purchase & Download

My payment was accepted but I can’t download the app. What should I do?

We receive a lot of support inquiries about purchase and download problems, but unfortunately, there’s very little we can do about it. The individual stores selling the apps are responsible for everything relating to purchase and download, and until the app is installed on your device, you’re in their hands.

Having said that, we’re happy to offer what advice we can:

Google Play Store
Other App Stores

If you’re having problems purchasing or downloading from any other retailer, then that’s who you need to contact in trying to resolve those problems. Links to the major stores selling PolyClock can be found on our Download page.

I had PolyClock on my old phone - how do I load it onto my new one?

Go to the market or app store that you bought the app from originally. Sign in with the same user ID that you used for the original purchase and you should be able to re-download the app without paying for it again. If this doesn't work, you'll need to contact the particular market in question for support.

I purchased the app with a different store account than I'm using now. Can I transfer it?

Unfortunately, none of the app stores provide a way for us to transfer app purchases from one account to another.

If you purchased it through Google Play, the best way to handle this is for you to purchase the app again, send us both the original and new order numbers, and we will then refund the original order – leaving the new order linked to your new account. It sounds like a hassle, but it does work out best in the long run.

If you purchased the app elsewhere (Amazon, Samsung etc.), then I'm afraid we have even less control over purchases and accounts. Your best bet is to contact customer service for the store in question and ask them to transfer it for you.


Can PolyClock display times in 24 hour format?

By default, it uses the 12/24 hour time format from your device, and this can be set from your device's home screen by pressing Settings > Date & Time > Use 24-hour format. You can also override this in PolyClock’s own Settings, under User Interface > Digital Clock Format.

What does the blue-black boundary indicate on the clock, and what does the relative amount of blue and black on the clock face represent?

In short, the colors show day and night. On the clock, hours that are in the sky-blue area are daylight hours, those in the black area are night-time hours. So that also means that the color the hour hand is pointing to indicates whether it's day or night right now in the location the clock is set for.

The concept (and execution) are explained in more detail on the Overview page.

The analog clock background abruptly switches from night to day at midnight. Can you please explain?

If you think about it, during the afternoon & evening hours, the entire 12-hour clock face is showing PM. So the 1:00 position is 1PM - daytime - and the 11:00 position is 11PM - nighttime. The 12:00 position is showing both noon and midnight (depending on which direction you're looking at it from), so it needs to be showing both day & night. At midnight, when the hour hand actually passes the 12, the clock face will switch from PM to AM and the day/night areas will essentially reverse.

This is actually how all 12-hour clocks work; the day/night visualization just makes the noon/midnight discontinuity more obvious. But it's not incorrect.

Can I make the app always use the digital format of the clock, regardless of how I rotate the device?

The linear daylight clock that goes along with the digital clock doesn't work well in landscape mode, for a couple of reasons. First, if you hide the map/globe section, you get different cities alongside each other, and the day/night sections tend to run into each other and look weird (we have tried it). Second, the alignment of day/night segments with the map (that you get in portrait mode) wouldn't happen.

For reasons such as these, we made the design decision to go with different layouts and clock types for landscape vs. portrait; the design is a unified whole. And no, there's not a way to override that design in the settings.

However, also be aware that we are always working on the design of the app, and do take comments like this under consideration as we do so.

How can I change a clock name?

Long-press on that clock, and then tap the Clock Properties icon and change the Place name. When you change it, you'll need to search for it to get the day/night correct, but if you rename it to a non-city name it'll just warn you about it, then suppress the day/night display.

Alternately, you can give any clock a Label (on the same Clock Properties dialog), which can be anything you want. This will display under the city name in the main app, and optionally can replace the city name display in the widgets.

After I edit a clock name why do the daylight colors disappear?

You need to use the Search button (on the Clock Properties dialog) to find the location of the new name. Without PolyClock knowing the specific location, it's not possible to show the day and night times.

How can I see what time it will be locally at a given time somewhere else?

You can slide the time scale bar with your finger to change the time of all displayed clocks, showing their relation to each other at any past or future time. You can also tap the Date / Time icon in the title bar to jump directly to any date or time.

After you do either - whenever PolyClock's main screen is showing a different time - you can return it to the present by tapping your device's Back button.

How can I add a clock for GMT - or some other, generic time zone - rather than a specific city?

It is possible to do this, though PolyClock's design discourages it (read why). The easiest way is to press Add Clock, then pick the desired zone, and delete the city which will be filled in automatically. And be aware that, obviously, you won't get sun rise or set data for zones without a city.

Note that recent versions of PolyClock have a zone specifically for GMT, with no city attached.

The app is showing the incorrect time for a location whose time zone rules recently changed.


The alarm doesn’t always go off at the right time but then sounds when I turn the device back on. What's wrong?

The unfortunate reality is that no alarm on an Android device will work if the device is powered off. There's absolutely nothing we can do about that; it's a limitation built into the hardware. Accordingly, the only workaround is to leave the device powered up if an alarm is scheduled (though it can be asleep).

The alarm doesn’t work when my Sony device is asleep. What should I do?

Sony has introduced STAMINA mode that prevents nearly all app activity when the phone is asleep and obviously this stops PolyClock alarms from firing when the device is in that state. Here's the way to deal with this:

  1. Go into your device Settings.
  2. Choose Power management.
  3. Tap on STAMINA mode so that it opens. Do not simply turn th switch on or off.
  4. Tap Add applications.
  5. Choose PolyClock from the list and press Done.
  6. PolyClock should appear on the STAMINA mode screen

The change will take some time to take effect.

How do I set an alarm to use an mp3 for the alert sound on my NOOK Color/Tablet? [This question specifically relates to the NOOK.]

There's no easy way to use an arbitrary sound file off your device as the alarm sound. If you're reasonably technical, you can sideload a third-party app to do it; the alarm sounds are just ringtones. But we’re not aware of a way within the framework that Barnes & Noble provides.

I'm having difficulty in trying to figure out how to set the alarm clock. Can you help?

The alarm-setting process is a little bit tricky, just because the reality of supporting multiple alarms in different zones is unavoidably somewhat complicated.

To set an alarm in your local zone, here's the easiest way to go about it:

  1. In PolyClock's main screen, ensure the Local zone is selected (the word Local and the location are in yellow-orange). If not, tap it.
  2. Press the Alarms icon in the title bar
  3. If you had no alarms before, this will take you straight into the Add Alarm dialog. Otherwise, press "Add alarm".
  4. A dialog should appear with the title "Local" and the current time. Select the time you want the alarm to ring and press Set. If you are using a twelve hour clock configuration check that either AM or PM is selected as appropriate.
  5. In the Set Alarm screen that follows, you can confirm that you have all the settings correct. Note that the Zone here should say Local; if it doesn't, tap it to change it.
  6. Press OK when all settings are correct, and if necessary, Back to return to PolyClock's main screen.

How can I set an alarm for local time - where ever I am in the world - and simultaneously set one for my home time zone?

The key here is that you need to set up alarms for two different clocks (zones) on your list - but if you're currently in your "home" zone, you probably only have one clock for it, the Local clock. So here's what you need to do:

  1. Ensure you have the Local clock enabled: Menu > Settings > Show local clock
  2. Add an alarm for Local (see the previous question). This is the alarm that will "follow you around", wherever you may travel.
  3. Add another clock to the list for your home town/city: Menu > Add clock, then Search for the name of your home town
  4. Add a second alarm for this new clock. This is the alarm that will remain fixed to your home time zone, ignoring any local time changes as you travel.

Note: this functionality is only available on devices with automated location services. Virtually all Android phones do, but many lower-priced tablets do not, including the NOOK Color/Tablet and the Kindle Fire.


How do I get PolyClock on the home screen of my device?

A full guide to the available PolyClock widgets, including how to install them, can be found on our Features page.

I have a Samsung phone which just upgraded to Android 4.x (Ice Cream Sandwich or Jelly Bean). Since the upgrade I can't access the resizable PolyClock widgets. What can I do?

Basically, the situation seems to be that Samsung didn't build their home screen from the official Android 4 source; as a result, only Samsung's own widgets are resizable; third-party widgets (like ours) aren't. You can read about the problem at androidcentral and reddit.

A suggestion from the second link above is to replace Samsung's stock TouchWiz home screen with one that's Android 4 compliant, like Nova Launcher or Apex Launcher and we have had some reports of success with this approach from users.

I'm trying to put a PolyClock widget on my home screen but can't see any of its widgets on the list. What should I do?

Assuming you have the app installed, the simplest way we've found to solve this difficulty is to reboot your device. The PolyClock widgets should then appear on the list.

Can I show the day of the week for each of the locations in the widget?

No, it doesn't display the day, sorry. What it does instead is color-code any clocks that are on a different day than your local zone: yellow for yesterday, turquoise for tomorrow.


What are the permissions that PolyClock is asking for, and why?

Here's a list of the permissions that PolyClock requests, along with a brief description of each. Click on any of them for a detailed explanation.

Required to display the Local city and zone.
Required to search for time zones and download satellite imagery.
Used to store various images for faster operation.
Required to apply time zones from PolyClock to the device.
Required to re-establish alarms after device reboot.
Used to vibrate the device when an alarm sounds.

Does PolyClock use a lot of the phone’s power resources?

No, it doesn't.

How much device memory does PolyClock require?

The current version takes about 12MB of your phone's memory for the app. It can be moved to SD card, but if you do so Android won't let you use the widgets, unfortunately.

Why does PolyClock register as a ZIP file handler on my phone?

It's does this because that's how the app's backups are stored. To change, just install any other ZIP-file-handling app (we can recommend Zipper or WinZip), and set it as the default for the .zip file type instead. If you need assistance with this, please email us and we'll be glad to help.

What's the difference between PolyClock and your other app, TerraTime?

PolyClock is geared toward the human construct of time zones, while TerraTime is about the natural flow of time as the Earth moves through space. The two concepts are obviously related, but they're different enough that we felt two separate apps could do them better justice than a single, all-encompassing app could.