As Edinburgh's Hogmanay builds to the midnight bells "countdown firework" displays take place at 9pm, 10pm, and 11pm on New Year's Eve, with a climactic fireworks display at the turn of the New Year.
The Fireworks display to open the year 2019 will have a specially created soundtrack by German techno-marching band Meute.
Thousands gather below the castle, many at the Edinburgh's Hogmanay Street Party on Princes Street, for this annual display which can be seen from vantage points across the city.
Following the fireworks, revellers across the country lock arms to sing Auld Lang Syne.
Edinburgh's Hogmanay organisers introduced the on-the-hour, Countdown Fireworks displays in 2012/2013.