Eastern (ET)
New York, Washington DC, Miami
Central Time is 1 hour behind Eastern Time, in January and July alike.
New York, Washington DC, Miami
Chicago, Dallas, Houston
Subtract 1 hour from Eastern Time to get Central Time. 12:00 PM EST is 11:00 AM CST. Eastern and Central switch to daylight saving together (EDT ↔ CDT), so the 1-hour gap holds all year.
Working hours line up almost completely: 10:00 AM–5:00 PM ET / 9:00 AM–4:00 PM CT keeps a call inside 9-to-5 on both sides, a seven-hour shared window. Only the first hour of the Eastern morning and the last hour of the Central afternoon fall outside it.
| Eastern (EST/EDT) | Central (CST/CDT) |
|---|---|
| 12:00 AM (midnight) | 11:00 PM (prev. day) |
| 1:00 AM | 12:00 AM (midnight) |
| 2:00 AM | 1:00 AM |
| 3:00 AM | 2:00 AM |
| 4:00 AM | 3:00 AM |
| 5:00 AM | 4:00 AM |
| 6:00 AM | 5:00 AM |
| 7:00 AM | 6:00 AM |
| 8:00 AM | 7:00 AM |
| 9:00 AM | 8:00 AM |
| 10:00 AM | 9:00 AM |
| 11:00 AM | 10:00 AM |
| 12:00 PM (noon) | 11:00 AM |
| 1:00 PM | 12:00 PM (noon) |
| 2:00 PM | 1:00 PM |
| 3:00 PM | 2:00 PM |
| 4:00 PM | 3:00 PM |
| 5:00 PM | 4:00 PM |
| 6:00 PM | 5:00 PM |
| 7:00 PM | 6:00 PM |
| 8:00 PM | 7:00 PM |
| 9:00 PM | 8:00 PM |
| 10:00 PM | 9:00 PM |
| 11:00 PM | 10:00 PM |
Reverse direction: CST to EST (add 1 hour). Related: EST to MST, EST to PST, EST to AKST.
Yes. Both zones move their clocks on the second Sunday of March and the first Sunday of November, so Central stays exactly 1 hour behind Eastern whether the pair is on EST/CST or EDT/CDT.
7:00 PM CST. That is the logic behind TV listings like 8/7c: one prime-time slot airs at 8:00 PM Eastern and 7:00 PM Central.
The NYSE opens at 9:30 AM Eastern, which is 8:30 AM Central, and closes at 4:00 PM Eastern, 3:00 PM Central.