Time systems, calendar references, and timezone tools.

Time-zone reference

CST

CST in the United States is the standard-time abbreviation for the central zone anchored by cities such as Chicago and Dallas.

What this abbreviation usually means

This page focuses on the North American meaning of CST because the abbreviation is reused in other parts of the world.

Reference offset

CST is commonly associated with UTC-6 in standard time. The current IANA reference on this page resolves to UTC-5 right now.

Representative locations

Chicago, Dallas, Houston are the places most readers expect when they search for this abbreviation.

DST handling

This abbreviation belongs to a zone family that changes offset seasonally, so the exact relation to UTC depends on the date.

Best next step

Use the dedicated converter when you need to translate a specific meeting or timestamp between this zone and another one.

Compare CST with related zones

These are the abbreviations people most often compare against this reference.

EST Open the EST reference page and compare it directly with CST. PST Open the PST reference page and compare it directly with CST. UTC Open the UTC reference page and compare it directly with CST. Timezone Converter Convert a specific date and time between CST and any other major world zone.