Android 4.3 is rolling out to Nexus devices now. It turns out that it introduces a bug which breaks the localized month names as shown for example on the time axis of the trend graph when the zoom setting is in the range of months. The function used by ECAS to get the localized names worked from Android 2.1 up to 4.2.2 without problems, so I assume a bug in 4.3. However, I will investigate and try to find a workaround. Until then, please don’t mind the english month names (in case your device is not set to english anyways).