RED OCTOBER on the clock. 9 out of 14 posts with it mentioned in the 17 drops. Markers aren't present on the [15] for the remaining 5. https://twitter.com/BBCBreaking/status/1384817851219988480

How I use the clock is a [15] minute delta each day. I count all the numbers and letters in [ ]. If there is an even amount, move ahead from any point on the [15] delta. If there is an odd amount, move back from any point on the [15] delta.