#BlackFriday 2015: What you need to know

Shoppers around the UK are expected to seek out bargains on Black Friday. Credit: PA

Millions of shoppers are gearing up for Black Friday, the one-day shopping bonanza which sees retailers across the globe slash their prices ahead of the traditional Christmas sales.

This year, it has been predicted that it could become the UK's first £1 billion online shopping day.

Here you can find the key details of the day from some of the major retailers, which are expected to cut prices to up to 70 per cent for the day of deals.

  • Amazon

The online giant has gone all-out for Black Friday, offering more than 7,000 deals for an extended sale period running from Monday to midnight on Friday night.

Headline offers include Amazon’s new Kindle Paperwhite for £84.99, a Guitar Hero Live 2 Bundle at £74.99 and Ted Baker headphones cut from £109.65 to £40.

New offers will go live every ten minutes, and Amazon is also offering “Lightning Deals”, with limited quantities of discounted products available for a short period of time.

Amazon will offer thousands of offers including short 'lightning deals' Credit: Amazon

  • Argos

The majority of Argos stores will open at 6am on Black Friday and some will extend their hours until 10pm. Hours for individual stores are available at their online store finder.

Online deals will go live at 00.01.

Details of special offers will only be announced closer to the day, but the store is also already running its own 12-day promotion around Black Friday.

That includes a Toshiba 15" screen laptop for £179.99, a Krups Dolce Gusto coffee machine with more than 50 per cent off at £38.99 and an XBox One console bundle deal with FIFA 16, Rise of the Tomb Raiderand Star Wars Battlefront for £314.99.

  • Boots

The chemist is offering various offers online and three stores in London - Liverpool Street Station, Piccadilly Circus and the flagship Oxford Street branch - will open at 12.30am.

  • Currys / PC world

Larger stores will open at 6am while smaller ones will open at 8am - check the online store finder for details of individual branches.

Online deals will be available between 6am and midnight. It's worth noting that Currys and PC world have separate websites but offer exactly the same products and Black Friday offers.

Black Friday deals are still a secret, but a separate Black Tag sale running for the ten days around the date include a Ninja Slim Blender for £39 (RRP £99) and a Dyson V6 cordless vacuum for £279 (RRP 429.99)

  • Debenhams

Most stores will be open from 8am until 10pm, though some stores including the Oxford Street flagship will extend their hours to stay open until 11am.

Online deals go live at 3am and will last until midnight.

The store's representatives remained tight-lipped about details of its best-buy offers on the day - but revealed they will include offers on beauty and designer ranges.

  • Halfords

Motoring and leisure retailer Halfords will be offering children's bikes at up to half price as well as a variety of deals on car accessories including stereos, navigation systems.

Halfords is gearing up for flocks of customers doing their pre-Christmas shopping on Friday. Credit: PA

  • John Lewis

All stores will open at 8am but closing times will vary - check their Black Friday page for details of individual branches.

Online deals will go live at 00.01 on Friday.

John Lewis will be offering its own bargains but its big sell is its "never knowingly undersold policy", which means it will be working through the day to match competitors' offers both online and in-store.

John Lewis will be price-matching throughout the day Credit: PA

  • Marks and Spencer

Marks and Spencer are offering up to 50% off selected clothing, beauty and homeware for Black Friday, with many deals starting on Thursday.

Offers include up to 50% off as cases of Louis Chaurey Champagne as well as 30% off women’s partywear, sleepwear and bags.

Normal opening times will be in operation.

  • Tesco

Tesco Extra stores will be opening from 5am to midnight on Black Friday.

Online deals run from 00.01 to midnight, with some offers running through until Monday 30th.

Exact details of the Black Friday bargains are still under wraps, but the store said it will have more than 200 offers on electrical, entertainment and mobile products including discounts of up to 70 per cent.

  • Asda checks out of Black Friday

Asda has turned its back on Black Friday this year.

The store, now owned by the US retail giant Walmart, is credited with helping popularise Black Friday in the UK.

But it said that it is moving away from one day of heavy discounting in favour of running offers all through the Christmas period.

Its best deals include an Oral B 2500 electric toothbrush down to £29.97 from £75.00, and the Christmas present favourite Lego, with a City Vehicle 3 in 1 offered for half price at £40.

Tempting food offers also include champagne for £10 and beef joints at £4/kg.

Chaotic scenes as shoppers fight over bargains at an Asda store Credit: PA

Are you heading out to the Black Friday sales? Tell us about your shopping experience or email pictures or videos to yourstory@itv.com

Read more: Eleven expert tips to get the best deals on Black Friday