Chickasaw Municipal Airport is the same time as Henry Post Army Airfield.


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Current time

Henry Post Army Airfield   2:09 AM on Tuesday, Jun 10, 2025

Chickasaw Municipal Airport   2:09 AM on Tuesday, Jun 10, 2025



Map from FSI to CHK

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Meeting planner for Henry Post Army Airfield and Chickasaw Municipal Airport

To schedule a conference call or plan a meeting at the best time for both parties, you should try between 9:00 AM and 5:00 PM your time in FSI. That will end up being between 9:00 AM and 5:00 PM in CHK. The chart below shows overlapping times.

Schedule a phone call from FSI to CHK

Since Henry Post Army Airfield and Chickasaw Municipal Airport are in the same time zone, you can call someone during your normal hours and it will be the same time in CHK as it is in FSI. Remember to check daylight savings for any time changes if you are scheduling a call.

If you are at FSI and you want to call a friend at CHK, you can try calling them between 7:00 AM and 11:00 PM your time. This will be between 7AM - 11PM their time, since Chickasaw Municipal Airport is in the same time zone as Henry Post Army Airfield.

If you're available any time, but you want to reach someone in CHK at work, you may want to try between 9:00 AM and 5:00 PM your time. This is the best time to reach them from 9AM - 5PM during normal working hours.


UTC-5 hours     UTC-5 hours
FSI     CHK
9:00 AM     9:00 AM
10:00 AM     10:00 AM
11:00 AM     11:00 AM
12:00 PM     12:00 PM
1:00 PM     1:00 PM
2:00 PM     2:00 PM
3:00 PM     3:00 PM
4:00 PM     4:00 PM
5:00 PM     5:00 PM

Henry Post Army Airfield

IATA: FSI
ICAO: KFSI
FAA: FSI
City: Fort Sill
State: Oklahoma
Country: United States
Category: airports
Time zone: America/Chicago (UTC/GMT -5 hours)

Chickasaw Municipal Airport

IATA: CHK
ICAO: KCHK
City: Chickasha
State: Oklahoma
Zip code: 73018
Country: United States
Category: airports
Time zone: America/Chicago (UTC/GMT -5 hours)

Time difference

Travelmath provides an online time zone converter for places all over the world. You can enter airports, cities, states, countries, or zip codes to find the time difference between any two locations. The calculator will automatically adjust for daylight saving time (DST) in the summer. You can use it as a meeting planner or a scheduler to find the best time to make international phone calls. World time zones have a positive or negative offset computed from Coordinated Universal Time (UTC), or Greenwich Mean Time (GMT). UTC has uniform seconds defined by International Atomic Time (TAI), with leap seconds announced at irregular intervals to compensate for the Earth's slowing rotation. The tz database or zoneinfo database uses the closest city, rather than the more common Eastern, Central, Mountain or Pacific time zones in the United States. Countries often change their daylight saving rules, so please help us stay current by letting us know if you find any pages that need updates.


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