Time in GYT and CHAST
The time difference between Guyana Time (GYT) and Chatham Standard Time (CHAST) is 16 hours 45 minutes. Chatham Standard Time is 16 hours 45 minutes ahead of Guyana Time.
This means 9am GYT is 1:45am CHAST (next day) and 5pm GYT is 9:45am CHAST (next day).
Guyana Time
- The current local time in GYT is 5:36 pm (July 18, 2026)
- GYT time zone offset is UTC-04:00
Chatham Standard Time
- The current local time in CHAST is 2:21 am (July 19, 2026)
- CHAST time zone offset is UTC+12:45
How to convert Guyana Time to Chatham Standard Time?
Add 16 hours 45 minutes to Guyana Time to get Chatham Standard Time.
Time in GYT
00:00
Time in CHAST
00:00
Use the slider above to convert Guyana Time to Chatham Standard Time and view the day and night map at different times.
Day–night colors on the map:
Day
Civil twilight
Nautical twilight
Astronomical twilight
NightTime Conversion Chart
| GYT | CHAST |
|---|---|
| 12am | 4:45pm |
| 1am | 5:45pm |
| 2am | 6:45pm |
| 3am | 7:45pm |
| 4am | 8:45pm |
| 5am | 9:45pm |
| 6am | 10:45pm |
| 7am | 11:45pm |
| 8am | 0:45am |
| 9am | 1:45am |
| 10am | 2:45am |
| 11am | 3:45am |
| 12pm | 4:45am |
| 1pm | 5:45am |
| 2pm | 6:45am |
| 3pm | 7:45am |
| 4pm | 8:45am |
| 5pm | 9:45am |
| 6pm | 10:45am |
| 7pm | 11:45am |
| 8pm | 12:45pm |
| 9pm | 1:45pm |
| 10pm | 2:45pm |
| 11pm | 3:45pm |