No timezone in email = confusing alerts

Date & time provided in email alert is confusing. I'm living in eastern timezone. When I received the alert it was 12:49 PM. The email content of the alert was saying an activity was noted at 10:49 AM (which your call center representative later confirmed it as Arizona timezone). I know I applied for a credit card. I don't know Uber Visa card that I applied was processed by Barclay's Bank Delaware. That's why I couldn't recognize the transaction and time also was confusing. (because exactly at 10:49 AM ET I removed freeze on my credit reports) So, I called your executives through alerts (800) 693-1134. The call was redirected to concerned department. Unfortunately, the executive spoke from that department was very rude and provided incorrect information, which made me think that I should never call LifeLock. Please include timezone information in email alerts. That will be very helpful.