CAT to ART Converter & Meeting Planner
Quick answer: 9:00 AM CAT = 4:00 AM ART (fixed +02:00 standard offset — not DST-adjusted). Use the interactive converter below for DST-aware local-time scheduling.
Planning a call or meeting between Central Africa Time (CAT) and Argentina Time (ART)? You need to account for the standard time difference. Argentina Time is normally 5 hours behind Central Africa Time. Whether you are coordinating between teams in Johannesburg and Harare and Buenos Aires and Córdoba, our live tool has you covered. Use our interactive overlap studio below to find the perfect waking hours for both regions, taking into account any seasonal Daylight Saving Time (DST) changes.
24-Hour Conversion Table
Quick reference: 12:00 AM CAT = 7:00 PM ART. The full 24-hour CAT to ART table below uses fixed standard offsets for exact abbreviation searches.
Example: 3:00 PM CAT = 10:00 AM ART.
| CAT Time | ART Time |
|---|---|
| 12:00 AM (00:00) | 7:00 PM (19:00)-1 day |
| 1:00 AM (01:00) | 8:00 PM (20:00)-1 day |
| 2:00 AM (02:00) | 9:00 PM (21:00)-1 day |
| 3:00 AM (03:00) | 10:00 PM (22:00)-1 day |
| 4:00 AM (04:00) | 11:00 PM (23:00)-1 day |
| 5:00 AM (05:00) | 12:00 AM (00:00) |
| 6:00 AM (06:00) | 1:00 AM (01:00) |
| 7:00 AM (07:00) | 2:00 AM (02:00) |
| 8:00 AM (08:00) | 3:00 AM (03:00) |
| 9:00 AM (09:00) | 4:00 AM (04:00) |
| 10:00 AM (10:00) | 5:00 AM (05:00) |
| 11:00 AM (11:00) | 6:00 AM (06:00) |
| 12:00 PM (12:00) | 7:00 AM (07:00) |
| 1:00 PM (13:00) | 8:00 AM (08:00) |
| 2:00 PM (14:00) | 9:00 AM (09:00) |
| 3:00 PM (15:00) | 10:00 AM (10:00) |
| 4:00 PM (16:00) | 11:00 AM (11:00) |
| 5:00 PM (17:00) | 12:00 PM (12:00) |
| 6:00 PM (18:00) | 1:00 PM (13:00) |
| 7:00 PM (19:00) | 2:00 PM (14:00) |
| 8:00 PM (20:00) | 3:00 PM (15:00) |
| 9:00 PM (21:00) | 4:00 PM (16:00) |
| 10:00 PM (22:00) | 5:00 PM (17:00) |
| 11:00 PM (23:00) | 6:00 PM (18:00) |
Best time to call Buenos Aires from Johannesburg
For most work calls, compare the normal business day in Johannesburg (CAT) with the business day in Buenos Aires (ART). CAT commonly covers Southern Africa, Central Africa, while ART is mainly associated with South America.
⚠️ Note: 2026-07-05 is not a normal workday in one or both regions based on their configured calendar. The overlap below should be treated as a reference, not a guaranteed office-hours window.
✅ The most practical overlap on 2026-07-05 is usually 2:00 PM - 5:00 PM CAT, which corresponds to 9:00 AM - 12:00 PM ART. This window sits inside the typical CAT workday (8:00 AM - 5:00 PM) and the ART workday (9:00 AM - 6:00 PM).
- DST Safety: Neither CAT nor ART uses Daylight Saving Time in our dataset, making business-hour relationships stable year-round.
- Johannesburg Stock Exchange (JSE): 09:00-17:00 local time in Johannesburg.
- Buenos Aires Stock Exchange (BCBA): 11:00-17:00 local time in Buenos Aires.
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Frequently Asked Questions
What is the time difference between CAT and ART?
During standard time, Argentina Time is 5 hours behind Central Africa Time.
Does the Central Africa Time zone observe Daylight Saving Time?
None of the countries observing Central Africa Time use Daylight Saving Time. South Africa abolished DST in 1994, and no other CAT-observing nation currently applies seasonal clock changes — CAT remains permanently fixed at UTC+02:00 throughout the year.
Which major countries use Central Africa Time (CAT)?
Central Africa Time is observed by South Africa, Zimbabwe, Zambia, Botswana, Mozambique, Malawi, and Eswatini. South Africa is the zone's dominant economy, with Johannesburg functioning as the region's primary financial center and home to the Johannesburg Stock Exchange (JSE), Africa's largest equity market by capitalization.
Does Argentina observe Daylight Saving Time?
Argentina permanently abolished Daylight Saving Time in 2009 after years of inconsistent observance. Since then, ART has remained fixed at UTC-03:00 every day of the year, with no seasonal clock changes of any kind.
Are Argentina Time (ART) and Brasilia Time (BRT) the same?
ART and BRT are distinct, separately designated time zones, but they currently share the exact same UTC-03:00 offset. Because neither Argentina nor Brazil's southeastern states currently observe DST, the two zones remain perfectly aligned year-round — though that alignment could change if either country's DST policy shifts.