Time Zone Overlap Calculator Calculator For Time Zone Overlap Time Zone Overlap Calculator Find overlapping working hours for teams across multiple time zones. Select First Time Zone: UTC New York (UTC-5) London (UTC+0) India (UTC+5:30) Sydney (UTC+10) Tokyo (UTC+9) Los Angeles (UTC-8) Johannesburg (UTC+2) Auckland (UTC+13) Select Second Time Zone: UTC New York (UTC-5) London (UTC+0) India (UTC+5:30) Sydney (UTC+10) Tokyo (UTC+9) Los Angeles (UTC-8) Johannesburg (UTC+2) Auckland (UTC+13) Working Hours (First Time Zone): to Working Hours (Second Time Zone): to Calculate Overlap