When traveling to a different time zone, simply stick to your usual routine and take your kegg readings according to the new time zone.  This means if your selected measurement time is 10 pm at home then continue to use 10 pm in the new time zone while traveling.  The kegg app will record and keep the time of your location for each day’s reading.
Depending on the disruption of routine, you may see an atypical pattern in your kegg readings for cycles with significant travel.  It is not uncommon to have some cycle disruptions or delays due to travel.
Within optional notes, be sure to add in your journal which days you are in a different time zone.