Sprinkler Timer Guide: How to Set Rain Bird and Hunter Controllers

Clock, start times, run times and water days for the Rain Bird ESP-TM2 and ESP-ME3 and the Hunter X2 and Pro-C, plus month-by-month seasonal adjust for the High Desert.

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Reviewed by Freddie Ruiz, Owner and CSLB-licensed contractor License C-27 #957605 Building landscapes in the High Desert since 2009 Last updated

Every sprinkler timer needs four settings: the clock, a start time, a run time for each zone, and the days to water. On Rain Bird ESP-TM2 and ESP-ME3 and Hunter X2 and Pro-C controllers, you turn the dial to each setting, use the arrow buttons to move and the + and – buttons to change values, then turn the dial back to AUTO (Rain Bird) or RUN (Hunter).

Before you start, find three things. First, the model name on the front of the controller. Second, your district’s watering days, which are in our High Desert watering schedules guide. Third, which zone number waters what, so you can give drip zones and lawn zones different run times.

One start time runs every zone. Rain Bird’s ESP-TM2 manual says programs only require a single start time in order to run, and separate start times are not required for each valve. Extra start times by mistake are the cause Rain Bird lists for excessive watering (ESP-TM2 manual).

Rain Bird ESP-TM2

From the ESP-TM2 manual, rev 05/16 (Rain Bird ESP-TM2 manual):

  1. Date and time: dial to DATE/TIME. Use the back and next arrows to pick the setting and – or + to change it (hold to speed up). For 12 or 24 hour format, press the next arrow while MINUTES is blinking, choose with – or +, then press next to return.
  2. Start times (up to 4 per program): dial to START TIMES. Press Program Select for A, B or C. Use the arrows to pick a start time and – or + to set it. Check AM and PM.
  3. Run times (1 minute to 6 hours): dial to RUN TIMES. Press Program Select, use the arrows to pick a station, and – or + to set its time. Next arrow moves to the next station.
  4. Run days: dial to RUN DAYS and press Program Select. The + or – button sets the blinking day ON or OFF and moves to the next day. Careful: pressing next on Sunday enters Cyclic mode. Press back to return.
  5. Odd or even days: at RUN DAYS, press and hold the back and next arrows together until ODD or EVEN shows.
  6. Seasonal adjust (5% to 200%): dial to SEASONAL ADJUST and use – or +. Press Program Select to adjust one program only.
  7. Test all stations: dial to MANUAL STATION, set a run time with – or +, then press and hold the next arrow.
  8. Finish: turn the dial to AUTO RUN.

If the screen freezes, the manual says to unplug the controller for 2 minutes and plug it back in, or press RESET. Stored programs stay in memory.

Rain Bird ESP-ME3

The ESP-ME3 follows the same dial-and-buttons pattern as the ESP-TM2. The differences, from the ESP-ME3 manual (Rain Bird ESP-ME3 manual):

  • Up to six start times per program, and four programs, A through D.
  • The 12 or 24 hour format is set while Day of Month is blinking.
  • The dial position is WATER DAYS, not RUN DAYS.
  • To turn a start time off, set it to the OFF position, between 11:45 PM and 12:00 AM.
  • Seasonal adjust runs from 5% to 200%.

Rain Bird also recommends that the maximum station cycle time be less than the time required for runoff to begin. The older first-generation ESP-Me is close but not identical. Use its own manual from Rain Bird’s ESP-Me support page.

Hunter X2

From Hunter’s X2 support pages (Hunter X2 support):

  1. Date and time: dial to DATE/TIME. The year flashes; use – or + to change it, then the right arrow to move to month, day, AM/PM/24HR, hours and minutes. Turn the dial to RUN when done.
  2. Start times: dial to START TIMES. Press PRG to pick program A, b or C. Use – or + to set the time in 15-minute steps, and the arrow to add another. The numbers 1 to 4 are start times, not stations. To delete one, go to 12:00 AM and press – once to reach OFF.
  3. Run times (0:00 to 6:00 hours): dial to RUN TIMES. Use – or + to set each station and the arrow to move to the next. After the last station, one more arrow press shows total run time.
  4. Water days: dial to WATER DAYS and press PRG for the program. Press + to add a day and – to remove it. For odd or even days, press the arrow until ODD shows; – toggles to EVEN. For an interval of 1 to 31 days, arrow past ODD/EVEN and set the interval and days left.
  5. Seasonal adjust (10% to 200% in 5% steps): dial to SEASONAL ADJUSTMENT. Hunter says to program your run times at 100% first.
  6. Test program: with the dial at RUN, hold PRG, set 1 to 15 minutes, and all zones run after 2 seconds.

Hunter Pro-C

From the Pro-C Owner’s Manual, LIT-605-US C 3/20 (Hunter Pro-C owner’s manual):

  1. Date and time: dial to DATE/TIME. The year flashes; use – or +, then the right arrow through month, day, AM/PM/24hr, hour and minutes.
  2. Start times: dial to START TIMES. PRG selects A, B or C. Use – or + in 15-minute steps; the right arrow adds another start time. To delete one, go to 12:00 am and press – once to reach OFF.
  3. Run times: dial to RUN TIMES. PRG switches program. Use – or + to set 1 minute to 6 hours, and the right arrow to go to the next station.
  4. Water days: dial to WATER DAYS. Press + to mark a water day and – to cancel it, starting on Monday. For odd days, on SUN press the right arrow once to show ODD; press – for EVEN. For an interval, press the right arrow past EVEN, press + to start, set the interval, press the right arrow, and set the days remaining.
  5. Seasonal adjust: dial to SEASONAL ADJUST and use – or + from 5% to 300% (this manual revision).
  6. One-touch manual start: with the dial at RUN, hold the right arrow for 2 seconds. It defaults to program A.

The feature table in the same manual lists run times of 1 minute to 4 hours while the programming section says 1 minute to 6 hours, so check your own manual revision. For the Pro-C’s Programmable Rain Off (1 to 31 days), follow the steps in the owner’s manual itself; our how to turn off sprinklers guide covers the simpler SYSTEM OFF option.

Orbit and App-Based Controllers

We are not listing Orbit button steps here, because we could not check them against an Orbit manual. Use Orbit’s own guides: the Easy-Set Logic guide on Orbit’s site or the Easy Dial programming support page. For Wi-Fi controllers that run from a phone app, use the maker’s in-app help or support site.

If you are thinking about a weather-based controller and you are a Liberty Utilities customer in Apple Valley, Liberty lists a Weather Based Irrigation Controller Program that requires its no-cost water audit to qualify (Liberty water programs). More on rebates is on our water rebates page.

Seasonal Adjust by Month for the High Desert

Seasonal adjust scales every run time by a percentage. The ESP-TM2 manual’s example: at 50%, a 10-minute run time runs 5 minutes. The simplest way to use it is to set run times that work in July at 100%, then lower the percentage each month.

The table below is our estimate, not a published schedule. We took the monthly reference ET (ETo) for Apple Valley from Liberty Utilities’ October 2025 water supply assessment (Liberty, Table 2-1) and divided each month by July’s 9.53 inches. Use it as a starting point and adjust by watching your plants.

MonthETo (in)Starting %MonthETo (in)Starting %
January2.2223%July9.53100%
February3.0132%August8.8092%
March4.9852%September6.5569%
April6.4868%October4.5247%
May7.9884%November2.7429%
June9.1196%December2.0221%

All four controllers here can reach these values: the ESP-TM2 and ESP-ME3 go down to 5% and the X2 to 10%. Winter and summer watering hours are covered in the High Desert irrigation guide.

Common Timer Mistakes

  • A start time for every zone. One start time runs the whole program in order. Extra start times water everything again.
  • AM and PM mixed up. A 5:00 start set to PM puts summer watering in the heat of the day and may break your district’s hours.
  • Drip and lawn on the same program. Put them on separate programs so each gets its own run times and days.
  • Days that do not match your district. Victorville and Adelanto set days by address. Check the watering schedules guide.

If a zone still runs when the timer says it should not, the problem may be the valve, not the timer. See sprinkler valve leaking. When the controller itself is the problem, Monarch replaces and upgrades controllers as part of our irrigation service; the irrigation cost guide covers what goes into it.

Sprinkler Timer FAQs

Do I need a separate start time for every zone?

No. One start time runs every station in that program in order. Rain Bird’s ESP-TM2 manual says separate start times are not required for each valve.

Why is my sprinkler system watering twice?

Usually because extra start times were set by mistake. Rain Bird lists this as the cause of excessive watering in the ESP-TM2 manual.

What is seasonal adjust on a sprinkler timer?

It is a percentage that scales every run time at once. In the ESP-TM2 manual’s example, a 10-minute run time runs 5 minutes at 50%.

Which days can I water in the High Desert?

It depends on your water provider. Victorville sets even addresses Tuesday, Thursday and Saturday and odd addresses Wednesday, Friday and Sunday. Adelanto sets even Tuesday and Thursday and odd Wednesday and Friday. Hesperia allows any day. Confirm with your district.

My Rain Bird timer screen is frozen. What do I do?

The ESP-TM2 manual says to unplug the controller for 2 minutes and plug it back in, or press RESET. Stored programs stay in memory.

Want a Controller That Is Easier to Manage?

Monarch installs and upgrades sprinkler controllers and drip zones across the High Desert, with zones laid out so lawn, beds and trees each get their own schedule. Get a free estimate and a straight answer on what your system needs.

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Or call (760) 792-7627

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