Decatur Airport is the same time as St. Louis Regional Airport.

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Current time

St. Louis Regional Airport   3:22 AM on Monday, Jun 9, 2025

Decatur Airport   3:22 AM on Monday, Jun 9, 2025

Map from ALN to DEC

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Meeting planner for St. Louis Regional Airport and Decatur 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 ALN. That will end up being between 9:00 AM and 5:00 PM in DEC. The chart below shows overlapping times.

Schedule a phone call from ALN to DEC

Since St. Louis Regional Airport and Decatur Airport are in the same time zone, you can call someone during your normal hours and it will be the same time in DEC as it is in ALN. Remember to check daylight savings for any time changes if you are scheduling a call.

If you are at ALN and you want to call a friend at DEC, you can try calling them between 7:00 AM and 11:00 PM your time. This will be between 7AM - 11PM their time, since Decatur Airport is in the same time zone as St. Louis Regional Airport.

If you're available any time, but you want to reach someone in DEC 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.

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.