Timer on-hours per season
Multiply nightly on-hours (dusk–dawn or your timer window) by display nights to get total season hours — handy for kWh and bulb life planning.
season_hours = hours_per_night × nights · optional: kWh = (watts ÷ 1000) × season_hours
When to use
This tool helps when you want a timer on-hours per season planning figure with the assumptions written down. You will enter on-hours per night, nights in the season, optional: total display watts, and optional: electricity rate ($/kwh).
Multiply nightly on-hours (dusk–dawn or your timer window) by display nights to get total season hours — handy for kWh and bulb life planning. Keep units consistent (feet vs inches, watts vs amps), then use the formula box to see how each term contributes.
Stop and ask a licensed electrician when loads, hardwired outlets, or roof work go beyond temporary plug-in holiday displays.
Enter your timer window (e.g., 5:30–11:00 = 5.5) or estimated dusk–dawn hours.
Worked example
Example inputs from the form defaults — On-hours per night = 5.5; Nights in the season = 45; Optional: total display watts = 400; Optional: electricity rate ($/kWh) = 0.14 — are plausible homeowner figures, not a survey of your roofline.
Compute with: season_hours = hours_per_night × nights · optional: kWh = (watts ÷ 1000) × season_hours. Show intermediates before the final count or cost.
When the calculator and scratch math disagree, fix units first; the timer on-hours per season model is only as good as consistent inputs.
Limits / assumptions
This timer on-hours per season page models only the arithmetic in the formula box. Taste, HOA rules, and neighbor sightlines are still on you.
Recheck against the worked example after any browser or copy change. If your setup violates an assumption on the page, do not lean on the headline number alone.
Output is for estimating and shopping lists — not a legal determination and not a replacement for outdoor electrical safety.
FAQ
Dusk to dawn varies?
Yes — midwinter nights are longer. Use an average or your fixed timer hours.
Partial weeks?
Count only nights the display actually runs.
Want full cost detail?
Plug season hours into display kWh cost, or use watts + rate here for a quick estimate.
Daylight timers?
Photo-eye dusk–dawn still needs an average hours/night input.