The Day Night Clock displays the amount of time left of the day until 6 pm (approximately sunset), the clock then resets to display the amount of time left of the night until 6 am (sunrise).
To represent daytime the clock displays "to set" or "ts" after time in a similar way to how "am" and "pm" are used. For example "7 am" on a regular clock would be "11 ts" on the Day Night Clock - meaning you've got 11 hours left of your day.
Nighttime is signified by "to rise" or "tr". For example "10 pm" would be "8 tr" on the Day Night Clock - time to get good night sleep.
Time is valuable, the Day Night Clock is designed to help us understand our time each day so that we might be able to do the wise things each day. This was inspired by the Bible verse: "Teach us to number our days, that we may gain a heart of wisdom." (Psalm 90) Though the clock doesn't deal with the time span of days - it is designed to make us aware of the quantity of time that we have in each day and how our time passes.
To give an example, let's say the current time is "10 am" which on the Day Night Clock is "8 ts" (there are 8 hours left of our day). Both "10 am" and "8 ts" are measuring time from a fixed moment in the day. "10 am" is measuring the time from midnight and "8 ts" is measuring the time until the end of the day (6pm). However, there are a number of reasons why "8 ts" is a more important measurement:
There are numerous potential benefits that can be gained from such a clock. For example, the clock doesn't give you more time, rather, there is a realisation about how little time we have. This may shock us initially and even give us some anxiety when we realise we attempt to do too many things in a day - that kind of shock is not bad, because such realisations will help us make better decisions and to plan what we value, giving space to important things.
Not only can the clock help us to be more focused - but it also has a more healthy approach to rest. The clock naturally divides the day into an active focused "day" and a calmed down "night" - this gives value and the needed space for rest too.
Handling daylight savings will is to be consistent with the definition of the clock above. This means that the clock actually handles day light savings in a more consistent manner.
When daylight savings starts and we lose an hour and the Day Night Clock will count down from 11 hours instead of 12 hours starting at 6 pm the previous day. When daylight savings finishes we gain an hour and the clock will start counting down from 13 hours from 6 pm the previous day.