The above visualisation represents the hourly 2017 temperature in New Delhi, India. Each revolution (ring) represents a single day, innermost being January 1st 2017 and outer most being December 31st 2017. Midnight is at top (24 hour clock), so the right half represents midnight to noon and the left half noon to midnight. For more details, instructions about how this was made, codepen, data source and source code: please visit this Gihtub repository.