Time Zone & Clock Changes 1925-1949 in Chicago, Illinois, USA

8:37:03 am CDT

Friday, April 19, 2024

Current:	CDT — Central Daylight Time
Next Change:	CST — Central Standard Time
Current Offset:	UTC/GMT -5 hours
Difference:	1 hour behind Columbus

1933 Time Zones - Chicago

CST
UTC-6h

CDT
UTC-5h

CST
UTC-6h

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

The graph above illustrates clock changes in Chicago during 1933.

Time Changes in Chicago Over the Years

Daylight Saving Time (DST) changes do not necessarily occur on the same date every year.

Time zone changes for:

Year	Date & Time	Abbreviation	Time Change	Offset After
1925	Sun, Apr 26 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 27 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1926	Sun, Apr 25 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 26 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1927	Sun, Apr 24 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 25 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1928	Sun, Apr 29 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 30 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1929	Sun, Apr 28 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 29 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1930	Sun, Apr 27 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 28 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1931	Sun, Apr 26 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 27 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1932	Sun, Apr 24 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 25 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1933	Sun, Apr 30 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 24 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1934	Sun, Apr 29 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 30 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1935	Sun, Apr 28 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 29 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1936	Sun, Mar 1 at 2:00 am	CST → EST	+1 hour (TZ change)	UTC-5h
	Sun, Nov 15 at 2:00 am	EST → CST	-1 hour (TZ change)	UTC-6h
1937	Sun, Apr 25 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 26 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1938	Sun, Apr 24 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 25 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1939	Sun, Apr 30 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 24 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1940	Sun, Apr 28 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 29 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1941	Sun, Apr 27 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 28 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1942	Mon, Feb 9 at 2:00 am	CST → CWT	+1 hour (DST start)	UTC-5h
1943 — 1944	No changes, UTC -5 hours all of the period
1945	Tue, Aug 14 at 6:00 pm	CWT → CPT	No offset (DST increasing)	UTC-5h
	Sun, Sep 30 at 2:00 am	CPT → CST	-1 hour (DST end)	UTC-6h
1946	Sun, Apr 28 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 29 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1947	Sun, Apr 27 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 28 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1948	Sun, Apr 25 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 26 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
1949	Sun, Apr 24 at 2:00 am	CST → CDT	+1 hour (DST start)	UTC-5h
	Sun, Sep 25 at 2:00 am	CDT → CST	-1 hour (DST end)	UTC-6h
* All times are local Chicago time.

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