Time Difference: Houston vs Perth
Perth is 13 hours ahead of Houston.
Quick Reference
- Houston
- CDT (GMT-5)
CST starts on Nov 1, 2026
- Perth
- AWST (GMT+8)
No Daylight Saving Time
Frequently Asked Questions
- What is the time difference between Houston and Perth?
- Perth is 13 hours ahead of Houston.
- When is the best time to call from Houston to Perth?
- The best time to call is during overlapping business hours (9 AM – 5 PM) in both cities. Use the interactive converter on this page to visually compare hours side by side.
- Does the time difference change with daylight saving time?
- The time difference may change when either city enters or exits daylight saving time. Houston uses CDT and Perth uses AWST.