San Diego is 1 hour behind Mexico City
Best overlap: 9:00 AM to 6:00 PM in Mexico City is 8:00 AM to 5:00 PM in San Diego.
The sweet spot is 9:00 AM to 6:00 PM Mexico City time, matching 8:00 AM to 5:00 PM in San Diego. Scheduling is forgiving here: with 9 hours of overlap, a missed slot just means picking another one the same day. The window above shifts seasonally: San Diego keeps daylight saving while Mexico City ignores it.