Time Zone Math: When It's 7 AM in San Diego, What Time Is It in Guadalajara?

9:00 AM (during standard time).

The Breakdown

• San Diego: Pacific Time (PT) = UTC-8 (standard) / UTC-7 (daylight)
• Guadalajara: Central Time (CT) = UTC-6 (standard) / UTC-5 (daylight)

Both observe daylight saving, but on different schedules:

• US: Second Sunday in March → First Sunday in November
• Mexico: First Sunday in April → Last Sunday in October (most states; border zones follow US)

Critical Nuance

Guadalajara (Jalisco) follows Central Standard Time year-round since 2022—Mexico abolished DST nationally, but border cities (Tijuana, Juárez) kept it for US sync. So for most of the year:

• Nov-Mar: San Diego UTC-8, Guadalajara UTC-6 → 2-hour gap (7 AM SD = 9 AM GDL)
• Mar-Apr: San Diego UTC-7 (DST), Guadalajara UTC-6 → 1-hour gap (7 AM SD = 8 AM GDL)
• Apr-Oct: San Diego UTC-7, Guadalajara UTC-6 → 1-hour gap
• Oct-Nov: San Diego UTC-7, Guadalajara UTC-6 → 1-hour gap

Always verify with a live converter (timeanddate.com, World Time Buddy) near your travel dates. The 2022 Mexican time reform changed everything.