CST to ALT Time Converter

Convert Central Standard Time (CST) to Algeria Time (ALT). Both time zones are shown live below; current offset between them is 6 hours ahead.

Chicago · Central Standard Time
03:08:00
Wednesday, May 13, 2026
CDT · UTC-05:00
Algiers · Algeria Time
09:08:00
Wednesday, May 13, 2026
GMT+1 · UTC+01:00

Convert a specific time

From: CST (Chicago)
To: ALT (Algiers)
--:--

Daylight Saving status right now

CST (Central Standard Time)
Observes DST
Yes
In DST right now
Yes
Next fall back
2026-11-01
Offset shift
UTC-05:00 → UTC-06:00
ALT (Algeria Time)
Observes DST
No

Heads up: CST observes DST while ALT does not. The 6-hour difference shown above will shift by one hour when CST starts or ends DST.

When can CST and ALT meet?

00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
CST
ALT
Both zones in working hours (9am-5pm)
One zone working
Off-hours
Columns are hours of the day in Chicago (CST). Each row shows the local working-hours state in that zone for the same moment in time.
2 hours of overlap during standard 9am-5pm working hours.
Best meeting window: 09:00–10:00 CST (15:00–16:00 ALT).

Hour-by-hour CST to ALT conversion table

CST time (Chicago)ALT time (Algiers)Status
00:00 Wed06:00 WedOff-hours both sides
01:00 Wed07:00 WedOff-hours both sides
02:00 Wed08:00 WedOff-hours both sides
03:00 Wed09:00 WedALT working
04:00 Wed10:00 WedALT working
05:00 Wed11:00 WedALT working
06:00 Wed12:00 WedALT working
07:00 Wed13:00 WedALT working
08:00 Wed14:00 WedALT working
09:00 Wed15:00 WedBoth at work
10:00 Wed16:00 WedBoth at work
11:00 Wed17:00 WedCST working
12:00 Wed18:00 WedCST working
13:00 Wed19:00 WedCST working
14:00 Wed20:00 WedCST working
15:00 Wed21:00 WedCST working
16:00 Wed22:00 WedCST working
17:00 Wed23:00 WedOff-hours both sides
18:00 Wed00:00 ThuOff-hours both sides
19:00 Wed01:00 ThuOff-hours both sides
20:00 Wed02:00 ThuOff-hours both sides
21:00 Wed03:00 ThuOff-hours both sides
22:00 Wed04:00 ThuOff-hours both sides
23:00 Wed05:00 ThuOff-hours both sides

Times computed for today in each zone using the IANA time zone database. The conversion accounts for daylight saving time wherever applicable.

About these time zones

Central Standard Time (CST)
IANA identifier
America/Chicago
Current UTC offset
UTC-05:00
Current abbreviation
CDT
Major cities in this zone
ChicagoHoustonDallasAustinNew Orleans
Algeria Time (ALT)
IANA identifier
Africa/Algiers
Current UTC offset
UTC+01:00
Current abbreviation
GMT+1
Major cities in this zone
Algiers

Sun today in Chicago and Algiers

Chicago
Sunrise
05:33
Sunset
20:02
Solar noon
12:48
Daylight
14h 28m

Related converters

ALT to CST (reverse)CST to ESTCST to PSTCST to GMTCST to UTCCST to CETEST to ALTPST to ALTGMT to ALTUTC to ALTCET to ALT
Looking for local time? See time in Chicago or time in Algiers.

Frequently asked questions

What is the time difference between CST and ALT right now?+
ALT (Algeria Time) is currently 6 hours ahead CST (Central Standard Time). The exact difference can change when one or both zones transition into or out of daylight saving time.
Does CST or ALT observe daylight saving time?+
CST: observes daylight saving time. ALT: does not observe daylight saving time.
When is the best time to schedule a meeting between CST and ALT?+
The strongest overlap is 09:00–10:00 CST (15:00–16:00 ALT), giving 2 hours when both sides are within standard 9am-5pm working hours.
What time is it in Algiers when it is 12:00 noon in Chicago?+
When it is 12:00 Wed in Chicago (CST), it is 18:00 Wed in Algiers (ALT).
Which IANA time zone identifiers are used for CST and ALT?+
CST maps to "America/Chicago" in the IANA database. ALT maps to "Africa/Algiers". These identifiers are what most software libraries use to convert times accurately, including DST handling.
Is Chicago ahead of or behind Algiers?+
Whether Chicago (CST) is ahead of or behind Algiers (ALT) depends on the current UTC offsets. Right now ALT is 6 hours ahead CST. The live converter and side-by-side clocks above always reflect the current direction.
What are the current UTC offsets for CST and ALT?+
CST is UTC-05:00 (CDT) and ALT is UTC+01:00 (GMT+1). Both offsets shift by one hour when the corresponding region enters or exits daylight saving time, so the live values on this page are the source of truth.
Can I schedule meetings during business hours for both CST and ALT?+
Yes. There are 2 hours of overlap during standard 9am-5pm working hours, with the strongest window at 09:00–10:00 CST.