Bill Text: IL SB1600 | 2025-2026 | 104th General Assembly | Introduced

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Bill Title: Amends the Time Standardization Act. Provides that daylight saving time shall be the year-round standard time of the entire State. Makes other changes. Effective January 1, 2026.

Sponsorship: Slight Partisan Bill (Republican 2-1)

Status: (Introduced - Dead) 2026-03-03 - Added as Co-Sponsor Sen. Rachel Ventura [SB1600 Detail]

Download: Illinois-2025-SB1600-Introduced.html

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104TH GENERAL ASSEMBLY State of Illinois 2025 and 2026 SB1600 Introduced 2/4/2025, by Sen. Jil Tracy SYNOPSIS AS INTRODUCED:
5 ILCS 440/1 from Ch. 1, par. 3201
Amends the Time Standardization Act. Provides that daylight saving time shall be the year-round standard time of the entire State. Makes other changes. Effective January 1, 2026.
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A BILL FOR
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AN ACT concerning government.
Be it enacted by the People of the State of Illinois,
represented in the General Assembly:
Section 5. The Time Standardization Act is amended by
changing Section 1 as follows:
(5 ILCS 440/1) (from Ch. 1, par. 3201)
Sec. 1. Notwithstanding how time is advanced pursuant to
the federal Uniform Time Act of 1966, 15 U.S.C. 260a, at At two
o'clock ante meridian of the second Sunday in March of 2026
each year, the standard time in this State shall be advanced
one hour; and thereafter, daylight saving time shall be the
year-round standard time of the entire State , and at two
o'clock ante meridian of the first Sunday in November of each
year the standard time in this State shall, by the retarding of
one hour, be made to coincide with the mean astronomical time
of the ninety degrees of longitude West from Greenwich, the
standard official time of which is described as United States
standard central time, so that between the second Sunday of
March at two o'clock ante meridian in each year and the first
Sunday in November at two o'clock ante meridian in each year
the standard time in this State shall be one hour in advance of
the United States standard central time: Provided, however,
that nothing in this Act shall be so construed as to be in

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contravention of any federal law or authorized order of the
Interstate Commerce Commission with respect to the time zones
of the United States. And in all laws, statutes, orders,
judgments, rules and regulations relating to the time of
performance of any act of any officer or department of this
State, or of any county, township, city or town, municipal
corporation, agency or instrumentality of the State, or school
district or school authority or relating to the time in which
any rights shall accrue or determine, or within which any act
shall or shall not be performed by any person subject to the
jurisdiction of the State, and in all the public schools and in
all institutions of the State, or of any county, township,
city or town, municipal corporation, agency or instrumentality
of the State or school district or school authority, and in all
contracts or choses in action made or to be performed in the
State, it shall be understood and intended that the time shall
be the time prescribed in this Section.
If the date on which time is to be advanced one hour, the
date on which time is to be retarded one hour, or both, as set
forth under Section 260a of the federal Uniform Time Act of
1966 (15 U.S.C. 260a), as now or hereafter amended,
renumbered, or succeeded, differs from either or both of those
dates as set forth under this Section, then the dates set forth
under the federal law shall control and shall apply in
Illinois, notwithstanding the dates set forth in this Section.
(Source: P.A. 95-725, eff. 6-30-08.)

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Section 99. Effective date. This Act takes effect January
1, 2026.