Birth Control & Time Zones

I’ve been traveling through Europe for the past 3 weeks, and arrive home on Saturday night. I’ve been 7 hours ahead of my normal time zone. I’m on my placebo pills this week and am not supposed to start my new pack until Sunday night, but am most likely going to be having sex as soon as I get back (before I start my new pack.) Do I start my new pack before I return home and take them at a time that would be equivalent to my normal time at home? Or am I ok to wait until Sunday night to start it? (We plan on using condoms and pulling out, but I am just overly cautious) Thanks!