--:--:--
—
Paris · Berlin · Rome
Schedule a fair multi-city call with the free meeting planner.
Difference
AST vs CEST
UTC → UTC
--:--:--
—
San Juan · Barbados · Halifax (winter)
CEST to AST converter
Convert CEST to AST time now
Free CEST to AST converter. See Central European Summer Time and Atlantic Standard Time side by side. Live clocks, a 6 hours gap, meeting hours, and a full-day chart for Paris and San Juan.
Europe/Paris
—
CEST → AST
To · Atlantic Standard Time
—
America/Puerto_Rico
Interactive diagram
Watch CEST convert into AST
Drag the Central Europe ST hour. Watch the Atlantic clock change.
Central Europe ST
9:00 AM CEST
—
AST ← CEST
Atlantic
—
Full-day chart
CEST to AST hourly conversion chart
Full-day table. Tap a row to copy. Labels follow daylight saving.
| Central Europe ST | Atlantic | UTC offsets |
|---|
Meeting times
Best CEST to AST meeting window
Find hours that work on both sides. Then save the slot to your calendar.
Follow along
Step-by-step CEST to AST conversion
Four short steps to convert any CEST time to AST.
Choose CEST time
Select any hour in Central European Summer Time. Smart mode uses Europe/Paris.
CEST to AST conversion guide
CEST to AST conversion guide
This CEST to AST converter shows Atlantic Standard Time (UTC−4) for any Central European Summer Time (UTC+2) time. Use it to schedule between Paris and San Juan. Choose Smart DST for live city clocks. Choose Fixed mode when you only want the CEST and AST labels.
Central Europe ST
CEST
UTC+2
Paris · Berlin · Rome
CEST vs AST—
Atlantic
AST
UTC−4
San Juan · Barbados · Halifax (winter)
What is CEST to AST conversion?
CEST to AST conversion turns a CEST clock into the matching AST time. Use it for calls, travel, and teams in Paris and San Juan.
CEST to AST time difference
AST is 6 hours behind CEST. Subtract 6 hours from the CEST time to get AST. The live clocks at the top show the current CEST to AST gap.
CEST vs AST
CEST is UTC+2. AST is UTC−4. They are different names. If a region uses daylight saving, check the live labels.
CEST to AST now / current time
Need cest to ast right now? Read the live clocks, or tap Use current time for an instant CEST → AST result.
CEST to AST time difference
Season / context — tap to explore
See how daylight saving can change this pair.
Central Europe ST—
—CEST → AST
Atlantic—
Quick answers
Central Europe ST
Central European Summer Time (CEST)
UTC+2
Central European Summer Time (CEST) is UTC+2. Smart DST uses the city clock Europe/Paris so daylight saving stays correct for Paris · Berlin · Rome.
- Cities: Paris · Berlin · Rome
- City clock: Europe/Paris
- Fixed CEST: UTC+2
- On this page it pairs with AST (UTC−4)
Atlantic
Atlantic Standard Time (AST)
UTC−4
Atlantic Standard Time (AST) is UTC−4. Smart DST uses America/Puerto_Rico for cities such as San Juan · Barbados · Halifax (winter).
- Cities: San Juan · Barbados · Halifax (winter)
- City clock: America/Puerto_Rico
- Fixed AST: UTC−4
- From CEST: AST is 6 hours behind CEST
CEST to AST FAQ