WATCH: What the first day of pot legalization looked like around Canada.

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Marijuana became legal in Canada at the stroke of midnight in Newfoundland, the time zone that is farthest to the east.

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From there, legal weed cascaded to each province and territory every hour — with the exception of Atlantic Canada, where marijuana was legalized a half hour after it was on the Rock.

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The drug is being legalized under the Cannabis Act, which comes into effect on Oct. 17.

The act states that people who are aged 18 years or older can possess up to 30 grams of legal cannabis in its dried or “equivalent non-dried form” in public.

WATCH: How to grow pot at home

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Marijuana coverage on Globalnews.ca:

You can also share up to 30 grams of cannabis with other adults.

The act also stipulates that people can buy “dried or fresh cannabis or cannabis oil” from provincially-licensed retailers; where there aren’t brick-and-mortar retailers, you can buy it online from “federally-licensed producers.”

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READ MORE: Cannabis IQ — here are all the legal ways to consume pot in Canada

People can likewise grow up to four cannabis plants per home from “licensed seed or seedlings.”

They can also make cannabis-infused food and drinks at home, “as long as organic solvents are not used to create concentrated products.”

The interior of a Cannabis NB retail store is shown in Fredericton, N.B., on Tuesday, October 16, 2018. THE CANADIAN PRESS/Stephen MacGillivray

The act, however, severely restricts underage people from possessing cannabis.

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You could face a maximum penalty of 14 years in jail if you give or sell cannabis to a youth, or if you use a youth to commit a “cannabis related offence.”

These are new criminal offences.

READ MORE: Legal cannabis use could still get you banned at the border, U.S. confirms

Just because marijuana will be legal, however, doesn’t mean that there will be licensed retailers available to sell it in every province and territory.

In Ontario, for example, there won’t be any physical retailers open — only an online store.

WATCH: ‘There’s no business model to copy’ says cannabis company CEO following legalization in Canada

Meanwhile, in B.C., there will be only a single provincially-licensed retailer open in Kamloops; the province’s Liquor Distribution Branch (LDB) is looking to locate to other locations in that city.

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However, anyone wishing to purchase marijuana in Vancouver can try an unlicensed, privately-run retailer.

B.C. Public Safety Minister Mike Farnworth has advised dispensary owners to shut down if they wish to operate legally.

However, Vancouver Police Department (VPD) spokesperson Sgt. Jason Robillard told Global News he was “not aware of any plans for the VPD to shut down any unlicensed privately-owned cannabis shops at least in the near future.”

Albertacannabis.org, the province’s website for online sales, proved so popular early Wednesday that the site wouldn’t load properly.

Some who visited the site found themselves on a lengthy waiting list.

Meanwhile, the Toronto Police Service (TPS) had a warning for people who smelled marijuana coming from a neighbour’s home.

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Here are Canada’s provinces and territories where marijuana has been legalized, and where it hasn’t yet:

Newfoundland — legal

Ian Power is first in line at the Tweed store on Water Street in St. John’s N.L. on Tuesday, October 16, 2018. THE CANADIAN PRESS/Paul Daly

Local and International media set up as a small line starts to form in front of the Tweed store on Water Street in St. John’s N.L. on Tuesday, October 16, 2018. THE CANADIAN PRESS/Paul Daly

An estimated 400 people were in line to purchase cannabis at the Tweed retail store on Water Street, St. John’s N.L. when it became legal after midnight on Wednesday, October 17, 2018. THE CANADIAN PRESS/Paul Daly

Canopy Growth CEO Bruce Linton, left to right, provides the receipt for the first legal cannabis for recreation use sold in Canada to Nikki Rose and Ian Power at the Tweed shop on Water Street in St. John’s N.L. at 12:01 am NDT on Wednesday October 17, 2018. THE CANADIAN PRESS/Paul Daly

Cannabis NL logo. Cannabis NL

New Brunswick, Nova Scotia, Prince Edward Island — legal

Cannabis NB logo. Cannabis NB

When cannabis becomes legally available to purchase on Oct. 17, 2018, residents can make their purchases at 12 Nova Scotia Liquor Corporation stores across the province. THE CANADIAN PRESS/Andrew Vaughan

Quebec, all of Ontario except for the far west — legal

A security guard stands in front of a new Societe Quebecoise du Cannabis (SQDC) store before a media preview Tuesday, October 16, 2018 in Montreal. The legal sale of cannabis begins in Canada on Wednesday, Oct. 17, 2018. THE CANADIAN PRESS/Ryan Remiorz

A depiction of a cannabis bud hangs from the ceiling at a band plays at Leafly’s countdown party in Toronto October 16, 2018, as they prepare to mark the legalization of Cannabis across Canada. THE CANADIAN PRESS/Chris Young

A depiction of a cannabis bud drops from the ceiling at Leafly’s countdown party in Toronto on Wednesday October 17, 2018, as midnight passes and marks the first day legalization of Cannabis across Canada. THE CANADIAN PRESS/Chris Young

People smoke Cannabis on the street in Toronto on Wednesday October 17, 2018. Midnight signalled the legalization of Cannabis across Canada. THE CANADIAN PRESS/Chris Young

Ontario Cannabis Store logo. Ontario Cannabis Store

Manitoba, Saskatchewan, western Ontario, most of Nunavut — legal

Manitoba Justice Minister Cliff Cullen speaks during a press conference in Winnipeg on October 15, 2018. THE CANADIAN PRESS/Steve Lambert

Alberta, Northwest Territories, parts of eastern British Columbia — legal

Alberta Cannabis logo. Alberta Cannabis

British Columbia, Yukon — legal

A security guard walks outside British Columbia’s first legal B.C. cannabis store in Kamloops, B.C. Tuesday, Oct. 16, 2018. Canada will legalize cannabis nation wide on Wednesday, Oct. 17 2018 allowing stores across the country to open and legally sell cannabis and cannabis products. THE CANADIAN PRESS/Jonathan Hayward

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