---
type: "Bill"
title: "Revising daylight savings time"
description: "Revising daylight savings time"
jurisdiction: "us/states/mt"
legislature: "Montana Legislature"
session: "2021"
identifier: "SB 254"
citation: "Montana SB 254 (2021)"
classification: ["bill"]
subjects: ["Interstate Cooperation", "State Government"]
status: "enacted"
primary_sponsors: ["Mary McNally"]
version_count: 3
action_count: 43
vote_count: 6
first_action: "2020-11-02"
last_action: "2021-05-11"
source: "openstates"
source_identifier: "ocd-bill/9e2d5ac2-a016-4024-a73e-d5230db32d92"
source_url: "http://laws.leg.mt.gov/legprd/LAW0210W$BSIV.ActionQuery?P_BILL_NO1=254&P_BLTP_BILL_TYP_CD=SB&Z_ACTION=Find&P_SESS=20211"
source_hash: "fc135aff08cdf5974aaefdc530884e10ea6b48cfba58515a4de823f09e7032ab"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-mt"]
---

# Montana SB 254 (2021) — Revising daylight savings time

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **SB0254_1.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/SB0299//SB0254_1.pdf)
2. **SB0254_X.pdf** (committee substitute) — [source](https://leg.mt.gov/bills/2021/SB0299//SB0254_X.pdf)
3. **Enrolled** (enrolled) — [source](https://leg.mt.gov/bills/2021/billpdf/SB0254.pdf)

## Votes

- Do Pass — **32–18** (pass) · upper
- Do Pass — **31–18** (pass) · upper
- Take SB 254 from Comm-McNally — **30–20** (pass) · upper
- BE CONCURRED IN — **8–4** (pass) · lower
- Do Concur — **64–36** (pass) · lower
- Do Concur — **66–32** (pass) · lower

## Sponsors

- Mary McNally — primary (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2020-11-02** Draft Request Received
- **2021-01-27** Draft to Requester for Review
- **2021-02-02** Draft in Legal Review
- **2021-02-02** Draft in Edit
- **2021-02-04** Draft to Drafter - Edit Review
- **2021-02-06** Draft in Input/Proofing
- **2021-02-08** Draft in Final Drafter Review
- **2021-02-08** Bill Draft Text Available Electronically
- **2021-02-10** Executive Director Review
- **2021-02-10** Draft in Assembly
- **2021-02-10** Draft Ready for Delivery
- **2021-02-10** Executive Director Final Review
- **2021-02-10** Draft Ready for Delivery
- **2021-02-16** Introduced `introduction`
- **2021-02-16** First Reading `reading-1`
- **2021-02-16** Referred to Committee - (S) State Administration `referral-committee`
- **2021-02-22** Hearing - (S) State Administration
- **2021-02-22** Introduced Bill Text Available Electronically
- **2021-02-26** Tabled in Committee - (S) State Administration `amendment-deferral`
- **2021-03-01** Taken from Committee; Placed on 2nd Reading - (S) State Administration `reading-2`
- **2021-03-01** Scheduled for 2nd Reading
- **2021-03-01** 2nd Reading Passed `reading-2`
- **2021-03-01** Scheduled for 3rd Reading
- **2021-03-02** 3rd Reading Passed `passage, reading-3`
- **2021-03-02** Transmitted to House
- **2021-03-02** Referred to Committee - (H) Energy, Technology and Federal Relations `referral-committee`
- **2021-03-08** First Reading `reading-1`
- **2021-03-19** Hearing - (H) Energy, Technology and Federal Relations
- **2021-04-12** Committee Executive Action--Bill Concurred - (H) Energy, Technology and Federal Relations
- **2021-04-13** Committee Report--Bill Concurred - (H) Energy, Technology and Federal Relations
- **2021-04-15** Scheduled for 2nd Reading
- **2021-04-15** 2nd Reading Concurred `reading-2`
- **2021-04-20** Scheduled for 3rd Reading
- **2021-04-20** 3rd Reading Concurred `passage, reading-3`
- **2021-04-20** Returned to Senate
- **2021-04-21** Sent to Enrolling
- **2021-04-26** Returned from Enrolling
- **2021-04-26** Printed - Enrolled Version Available
- **2021-05-04** Signed by President
- **2021-05-04** Signed by Speaker
- **2021-05-04** Transmitted to Governor `executive-receipt`
- **2021-05-10** Signed by Governor `executive-signature`
- **2021-05-11** Chapter Number Assigned `became-law`

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/9e2d5ac2-a016-4024-a73e-d5230db32d92`. Confidence: reported (aggregated from official Montana legislature records).