# About Timers?

**URL:** <https://forum.sierrawireless.com/t/about-timers/3787>\
**Category:** Open AT\
**Created:** [October 28, 2009, 4:47am UTC](https://forum.sierrawireless.com/t/about-timers/3787 "2009-10-28T04:47:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Chandrasekaran.KA](https://avatars.discourse-cdn.com/v4/letter/c/8e8cbc/32.png) [@Chandrasekaran.KA](https://forum.sierrawireless.com/u/Chandrasekaran.KA)\
**Post date:** [October 28, 2009, 4:47am UTC](https://forum.sierrawireless.com/t/about-timers/3787/1 "2009-10-28T04:47:33Z")

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Hi all,

```
   I have a doubt in timers..In user guide it is mentioned we can use 32 timers running at same time..So if im not using 32 timers running at same time can i use more than 32..To be more clear if i am using non cyclic timers which will not run together in my case.Then can i use more than 32. Also to have more timers is it necessary to unsubscribe timers which have been timed out(non cyclic) and subcribe to new timers.
```

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**Author:** ![haricool](https://avatars.discourse-cdn.com/v4/letter/h/ba9def/32.png) [@haricool](https://forum.sierrawireless.com/u/haricool)\
**Post date:** [March 18, 2010, 10:17am UTC](https://forum.sierrawireless.com/t/about-timers/3787/2 "2010-03-18T10:17:59Z")

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hi,

Irrespective of the type of timers you can use only 32 timers.  
I have practically seen this. see timer concept in ADL User guide.

Regards,  
Haricool.

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**Author:** ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)\
**Post date:** [March 18, 2010, 10:42am UTC](https://forum.sierrawireless.com/t/about-timers/3787/3 "2010-03-18T10:42:32Z")

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The 32 limit is the number of timers actually running (ie, subscribed) simultaneously

A non-cyclic - ie, one-shot - timer is automatically unsubscribed when it expires.