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Algiers to Colombo Time

CET to IST Converter — 9 AM CET is 1:30 PM IST

Algiers is 4 hours and 30 minutes behind Colombo. Convert any time between Algiers (CET) and Colombo (IST) instantly.

Algiers

Algeria

CET
UTC+1 · CET

Colombo

Sri Lanka

IST
UTC+5:30 · IST
Algiers is 4 hours and 30 minutes behind Colombo.

Add Time Zones to Compare

Algiers(UTC+1)
Colombo(UTC+5:30)

Time Zone Comparison

Algiers
1:00 PM
Algeria · CET
12:00 PM
12amNight
1amNight
2amNight
3amNight
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
Colombo
5:30 PM
Sri Lanka · IST
4:30 PM
4amNight
5amNight
6amNight
7amNight
8amNight
9amWorking hours
10amWorking hours
11amWorking hours
12pmWorking hours
1pmWorking hours
2pmWorking hours
3pmWorking hours
4pmWorking hours
5pmEvening
6pmEvening
7pmEvening
8pmEvening
9pmNight
10pmNight
11pmNight
12amNight
1amNight
2amNight
3amNight
Working
Evening
Night
Now
Selected Time
Minutes:
Algiers12:00 PM
Colombo4:30 PM

Algiers to Colombo Time Conversion Table

Algiers (CET)Colombo (IST)
12:00 AM4:30 AM
2:00 AM6:30 AM
4:00 AM8:30 AM
6:00 AM10:30 AM
8:00 AM12:30 PM
10:00 AM2:30 PM
12:00 PM4:30 PM
2:00 PM6:30 PM
4:00 PM8:30 PM
6:00 PM10:30 PM
8:00 PM12:30 AM
10:00 PM2:30 AM
Working hours (9 AM - 5 PM)
Evening (5 PM - 9 PM)
Night

Algiers & Colombo — Business & Scheduling Guide

Algiers (Algeria) is Africa's largest country by area with significant energy reserves, with key industries in oil and gas, petrochemicals, mining, and agriculture. Colombo (Sri Lanka) is a South Asian island economy with strategic Indian Ocean positioning, known for tourism, tea, apparel, and IT/BPO services. With a 4.5-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.

Scheduling Meetings Between Algiers and Colombo

The 4.5-hour difference between Algiers and Colombo requires careful scheduling. The best overlap window is typically 2–4 hours when both cities are within working hours. Algerian business hours are typically 8 AM–4:30 PM Sunday–Thursday, with Arabic and French as business languages. Sri Lankan business hours are typically 8:30 AM–5 PM, with a growing technology outsourcing sector. Teams often designate specific "overlap hours" for real-time collaboration and use asynchronous communication (Slack, email, recorded video) for the rest of the day.

Daylight Saving Time Considerations

Neither Algiers nor Colombo observes Daylight Saving Time — Algiers stays on CET and Colombo stays on IST year-round. This makes scheduling between these two cities simpler, as the 4.5-hour time difference remains constant throughout the year with no DST surprises.

Collaboration Tools & Workflow

The 4.5-hour gap between Algiers and Colombo means teams get roughly half a day of overlapping work hours. Successful cross-timezone teams typically batch synchronous activities (standups, reviews, planning) into the overlap window and reserve solo deep work for non-overlapping hours. Tools like Loom for async video updates, Slack with status indicators showing each team's local time, and shared Notion docs help bridge the gap. Many teams adopt a "follow-the-sun" workflow where handoffs happen at the edges of each team's workday.

Remote Work Between Algiers & Colombo

Algiers, a key city in Algeria, and Colombo, a key city in Sri Lanka, represent a common corridor for distributed teams navigating a 4.5-hour time difference. Remote workers and freelancers operating between these cities should plan their day around the overlap window — typically the late morning for one city and early morning or late afternoon for the other. Using a world clock widget, setting Slack status with local time, and blocking "no-meeting" deep work hours outside the overlap are essential practices for productive cross-timezone remote collaboration between Algiers and Colombo.

CET to IST — Quick Reference

CET (CET) stands for the timezone used in Algiers, Algeria (UTC+1). IST (IST) is the timezone used in Colombo, Sri Lanka (UTC+5:30). Algiers is 4 hours and 30 minutes behind Colombo.

To convert CET to IST, add 4.5 hours to CET time. For example, CET 9:00 AM = IST 1:30 PM.

Key Facts

  • Time difference: Algiers (UTC+1) is 4 hours and 30 minutes behind Colombo (UTC+5:30).
  • Daylight Saving Time: Algiers does not observe DST (CET). Colombo does not observe DST (IST).
  • Regions: Algiers is located in Algeria and uses the CET time zone. Colombo is located in Sri Lanka and uses the IST time zone.
  • Best time to call: The best time to call between Algiers and Colombo is 9:00 AM to 12:00 PM in Algiers time, when both cities have overlapping standard working hours.

Frequently Asked Questions

What is the time difference between Algiers and Colombo?

Algiers is 4 hours and 30 minutes behind Colombo.

What time is it in Colombo when it's 9 AM in Algiers?

When it's 9:00 AM in Algiers, it is 1:30 PM in Colombo.

What time is 9 PM CET in IST?

9 PM CET (Algiers time) is 1:30 AM IST (Colombo time). This is a common time people check when scheduling evening calls across these two time zones.

When is the best time to schedule a meeting between Algiers and Colombo?

The best time to schedule a meeting is between 9:00 AM to 12:00 PM in Algiers time, when both cities are within standard working hours (9 AM – 5 PM). This gives you the maximum overlap window for real-time collaboration.

How do I convert CET to IST?

CET (CET) is the timezone for Algiers, Algeria (UTC+1). IST (IST) is the timezone for Colombo, Sri Lanka (UTC+5:30). Algiers is 4 hours and 30 minutes behind Colombo. Quick examples: 9 AM CET = 1:30 PM IST, 12 PM CET = 4:30 PM IST, 3 PM CET = 7:30 PM IST, 6 PM CET = 10:30 PM IST.

Is Algiers ahead of or behind Colombo?

Algiers is 4 hours 30 minutes behind Colombo. When it's noon in Algiers, it's 4:30 PM in Colombo.

Does Algiers or Colombo change clocks for Daylight Saving Time?

No, Algiers does not observe DST — it stays on CET year-round. Colombo does not observe DST — it stays on IST year-round.

What time is noon in Algiers in Colombo time?

When it is 12:00 PM (noon) in Algiers (CET), it is 4:30 PM in Colombo (IST). This is often a popular time for scheduling lunch-hour calls across the Algiers–Colombo corridor.

What are the overlapping work hours between Algiers and Colombo?

The overlapping work hours between Algiers and Colombo are approximately 9:00 AM to 12:00 PM in Algiers time, when both cities are within the standard 9 AM–5 PM workday. This is the ideal window for meetings, pair programming, and real-time collaboration.

What timezone is Algiers in?

Algiers is in the CET time zone (UTC+1). It is located in Algeria. Algiers does not observe Daylight Saving Time.

What timezone is Colombo in?

Colombo is in the IST time zone (UTC+5:30). It is located in Sri Lanka. Colombo does not observe Daylight Saving Time.

How do I schedule a call between Algiers and Colombo?

To schedule a call between Algiers and Colombo, aim for the overlapping window of 9:00 AM to 12:00 PM in Algiers time. Use Google Calendar or Calendly with both time zones visible, share the meeting invite with the IST time clearly noted, and always double-check the time difference — especially during DST transitions. Pro tip: include both local times in the calendar invite title (e.g., "Sync — 10 AM CET / 2:30 PM IST").

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