- Mark Holland was born and given up for adoption.
- Mark Driscoll was born.
- Dixon Wilson was born.
- Liam Court was born.
- Teddy Montgomery was born.
- Navid Shirazi was born.
- Adrianna Tate-Duncan was born.
- Erin Silver was born.
- Naomi Clark was born.
- Annie Wilson was born.
- September 1: Start of the school year.
- September 7: The Wilson Family move from Kansas to Beverly Hills. ("We're Not in Kansas Anymore)
- September 8: First day Annie and Dixon in West Beverly High. ("We're Not in Kansas Anymore)
- September 12: Naomi's 16th birthday party. ("We're Not in Kansas Anymore)
- September 13 Annie breaks up with Jason. Debbie finds that Harry has a child with Tracy Clark. ("The Jet Set")
- November 6: Adrianna and Navid first kiss. ("Secrets and Lies")
- Annie's 16th birthday party. ("Games People Play")
- May 9: Adrianna's bachelorette party. ("The Party's Over")
- May 18: West Bev's Prom. Adrianna gives birth to Maisy. ("Zero Tolerance")
- May 19: Annie kills Jasper's uncle, Joe Herman. ("One Party Can Ruin Your Whole Summer")
- August 31: Summer school over. The Party at the end of summer on Beach Club. Annie meets Mark Driscoll. ("To New Beginnings!")
- September 1: Liam is back.
- September 2: Naomi sends Annie's naked photo to everyone in West Bev. ("To Sext or Not to Sext") Dixon meets Sasha. ("Sit Down, You're Rocking the Boat")
- September 3: Party on a yacht. Dixon kisses Sasha. ("Sit Down, You're Rocking the Boat")
- Weekend: Dixon takes Sasha to Napa. ("The Porn King")
- September 7: Annie meets Jasper Herman. ("The Porn King")
- September 8: Teddy kisses Adrianna. ("The Porn King")
- September 9: Sasha breaks up with Dixon. ("Environmental Hazards")
- September 10: Naomi meets with Richard Carte. ("Environmental Hazards")
- Before Christmas: Winter Wonderland dance. ("Winter Wonderland")
- Christmas: Naomi and Silver spend in St. Barts. Annie spends in Las Vegas.
- September 1: First day of the senior year. ("Senior Year, Baby")
- Adrianna arrives to Africa.