UTC to CST converter

UTC to CST quick reference

CST or CDT? Daylight saving explained

UTC is the world’s reference time. It never changes for daylight saving; every other zone is described as an offset from it.

CST (UTC−6) is the winter name and CDT (UTC−5) the summer name. “CST” usually means local Central time (Chicago, Dallas, Houston) whatever the season, so MeetETA reads it that way and handles daylight saving for the date you pick.

Right now UTC is on UTC, UTC+0 and Chicago is on CDT, UTC−5 (the clocks at the top of the page always show the live values).

How the gap changes during the year

Chicago is 6 hours behind UTC while Chicago is on CST, and 5 hours behind UTC while Chicago is on CDT.

Working-day overlap, hour by hour

Each row is an hour in UTC. Green means that side is inside a 9–5 working day. While Chicago is on CST there is 2 h of shared 9–5 time; the easiest window is 1 PM–10 PM UTC (7 AM–4 PM CST). While Chicago is on CDT there is 3 h of shared 9–5 time; the easiest window is 12 PM–10 PM UTC (7 AM–5 PM CDT).

Shows UTC 5 AM to 10 PM. Times on the Chicago side may fall on the next day.

Example conversions

Questions people ask

What is the time difference between UTC and CST?

Chicago is 6 h behind UTC while Chicago is on CST, and 5 h behind UTC while Chicago is on CDT. Right now it is 5 h.

Does the UTC to CST difference change with daylight saving?

Yes. US Central Time changes its clocks and Coordinated Universal Time does not, so the gap moves by an hour twice a year (next on Sun 1 Nov 2026).

How do I convert 3 PM UTC to CST?

While Chicago is on CST, 3 PM UTC is 9 AM CST. While Chicago is on CDT, 3 PM UTC is 10 AM CDT. Or just type “3 PM UTC” in the converter at the top of this page.

When can UTC and US Central time meet during work hours?

While Chicago is on CST there is 2 h of shared 9–5 time; the most comfortable window is 1 PM–10 PM UTC (7 AM–4 PM CST). While Chicago is on CDT there is 3 h of shared 9–5 time; the most comfortable window is 12 PM–10 PM UTC (7 AM–5 PM CDT).

What time is 9 PM CST in UTC?

While Chicago is on CST, 9 PM CST is 3 AM UTC the next day. While Chicago is on CDT, 9 PM CDT is 2 AM UTC the next day. For other times, type something like “9 PM CST” in the converter.

Should I write CST or CDT?

CST (UTC−6) is the winter name and CDT (UTC−5) the summer name. “CST” usually means local Central time (Chicago, Dallas, Houston) whatever the season, so MeetETA reads it that way and handles daylight saving for the date you pick.

Is MeetETA free?

Yes. MeetETA is free, shows no ads and needs no account. Your cities and settings stay in your browser, and where consent is required, analytics only load after you accept cookies.