Highlighted rows fall within 09:00–18:00 in both places: 3 shared working hours.
How many hours is CST behind FJT?
As abbreviations, FJT is always 18 hours ahead of CST: CST is UTC−6 and FJT is UTC+12. To convert, add 18 hours.
When the CST to FJT time difference changes
For most of the year FJT is 17 hours ahead of CST. From 1 November to 31 December 2026, FJT is 18 hours ahead of CST instead, because the two places change their clocks on different dates. Meetings booked by the usual gap land an hour off in those weeks.
Dates
FJT vs CST
Length
1 November 2026 to 31 December 2026
18 hours ahead
61 days
1 January 2027 to 13 March 2027
18 hours ahead
72 days
14 March 2027 to 6 November 2027
17 hours ahead
238 days
7 November 2027 to 31 December 2027
18 hours ahead
55 days
When CST and FJT are both at work
When FJT is 17 hours ahead of CST: no shared 09:00 to 17:00 hours; one side has to take the call outside office hours.
When FJT is 18 hours ahead of CST: no shared 09:00 to 17:00 hours; one side has to take the call outside office hours.
Frequently asked questions about CST and FJT time
How many hours ahead is FJT of CST?
FJT (UTC+12) is 18 hours ahead of CST (UTC−6).
Does the time difference between CST and FJT change?
Yes. It is usually 17 hours ahead, but changes when one side moves its clocks: 18 hours ahead from 1 November to 31 December 2026; 18 hours ahead from 1 January to 13 March 2027.