Services were held around the UK to remember those who have died from coronavirus.
The Queen reflected on the "grief and loss felt by so many" and sent a bouquet of flowers to St Bartholomew's Hospital in London.
On 23 March 2020, Prime Minister Boris Johnson announced tough restrictions on people's lives, aimed at stopping the spread of Covid-19. Since then, the UK's official death toll has risen from 364 to 126,172. People are being encouraged to stand on their doorsteps at 20:00 GMT with phones, candles and torches to signify a "beacon of remembrance". The gesture is being organised by end-of-life charity Marie Curie.
Landmark and tourist attraction The London Eye is illuminated in yellow light.
The iconic Titanic building and visitor centre is lit up in yellow in Belfast.
Sunderland's Northern Spire Bridge looked striking at nightfall
The Kelpies sculpture in Falkirk, Scotland, is also illuminated in yellow, as part of a day of reflection.
At No 10 Downing Street, a staff member places a candle on the doorstep for the 20:00 vigil.
There was a sombre reflection for those lost during the pandemic in Dormansland, Surrey
Here are pictures of people observing the minute's silence and attending services around the UK.
Health workers from the Glasgow Royal Infirmary (also below)
Staff outside the Queen Elizabeth University Hospital in Glasgow
Health workers and faith leaders at the Fazl mosque vaccination centre in southwest London
Staff at a Marie Curie hospice in Penarth
William, Duke of Cambridge and Catherine, Duchess of Cambridge took
part in a private moment of reflection in Westminster Abbey and then
visited a vaccination centre at the abbey in London
The House of Commons held a minute's silence. Prime Minister Boris Johnson observed the silence privately
Minister Nicola Sturgeon (left), Presiding Officer Ken Macintosh
(centre) and Scottish Conservative Ruth Davidson (right), along with
other MSPs and parliament staff, observe a minute's silence in the
Garden Lobby of the Scottish Parliament at Holyrood, Edinburgh
a tweet earlier in the day, First Minister Nicola Sturgeon said: "One
year on. Thinking today of all those who have lost a loved one to Covid,
and to everyone who continues to make heartbreaking sacrifices as we
continue to navigate our way through this terrible ordeal, together"
Canon Andrew Stead leads a service at Lichfield Cathedral
People light candles in Lichfield Cathedral
The Dean of Ripon, The Very Reverend John Dobson lights a candle of remembrance in Ripon
stand alongside firefighters (in red) from Hampshire Fire and Rescue as
they observe a minute's silence in the Intensive Care Unit (ICU) at
Queen Alexandra Hospital in Portsmouth
spiritual adviser Mia Hilborn (centre) stands with NHS England chief
executive Sir Simon Stevens (centre left) and Guys and St Thomas' NHS
Trust chief executive and chief medical officer Dr Ian Abbs (centre
right) during a ceremony at St Thomas' Hospital in central London
Members of staff place flowers near the statue of Crimean War nurse Mary Seacole at St Thomas' Hospital
Commuters take part in a minute's silence at Waterloo Station in central London
A yellow ribbon is tied to a memorial tree at Hutton Rudby Methodist Church in Middlesbrough
Angel ties a yellow ribbon to a gate after a service at St Catherine's Church in London