I’m about to travel to a different time zone and I want to continue charting while I’m away. How should I deal with the time change?
If you are changing time zones during your travel, there’s a good chance that your temperatures will be impacted, because effectively you’ll be taking them earlier or later than usual. The degree to which they are affected will depend on your individual metabolism and the extent of your travel. Any effects on temperature should only last a couple of days or so.
If you are travelling during the luteal phase of your cycle, a disruption in your temperatures won’t matter. However, if you are changing time zones around the time of ovulation, your temperature shift may be more difficult to detect.
Continue taking your temperature at the same time as usual (in the new local time) but record this situation on your chart, to explain any anomalies. If your travel occurs around the time of ovulation, pay particular attention to cervical fluid and secondary fertility signs to help identify your fertile days.