Clock
Mycology-Supply • Cultivation Timing
The Lab Clock
The Mycology-Supply Julian Day Clock — a digital wall display showing standard time and the Julian day-of-year side by side. Track long-arc cultivation timing on the lab wall without calendar math.
Julian day display
Standard time
Wall-mountable
Multi-batch ready
Cultivation Timing
Cultivation runs on day counts, not calendar dates. Inoculated day 47, today is day 61 — 14 days in, time to inspect the bag. The Julian Day Clock shows the day-of-year as a number from 1 to 365 alongside standard time, so subtraction replaces calendar lookups on the lab wall. Designed in-house for our own cultivation work; sold to anyone running enough simultaneous batches that date math becomes friction.
Quick Answers
The Julian Day used in cultivation is the day of the calendar year as a number from 1 to 365 — January 1 is day 1, February 14 is day 45, December 31 is day 365. (Astronomers use a different, much larger Julian Day Number; this clock uses the simpler day-of-year convention that practical cultivators rely on.) The point is that every date becomes a single number, so the time between two dates is just subtraction.
Every step in cultivation has a duration measured in days: colonization 14–21 days, fruiting cycle 7–10 days, weekly batch sterilization schedules. If you inoculated on day 47 and today is day 61, you're 14 days in — read the wall, subtract, done. Calendar math (April 16 to May 30 = how many days?) is the alternative. For cultivators running enough simultaneous batches that they need to track several timelines at once, the Julian Day display removes one constant friction point.
A standard wall clock shows hours, minutes, and seconds. This clock shows that plus the day-of-year number, both at the same time, on the same digital display. The Julian day rolls over at midnight; the standard time runs continuously. One unit, two readings, no math required.
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