# Bigtimer questions

**URL:** <https://discourse.nodered.org/t/bigtimer-questions/20692>\
**Category:** General\
**Created:** [21 January 2020 17:25 UTC](https://discourse.nodered.org/t/bigtimer-questions/20692 "2020-01-21T17:25:20Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![kanke](https://avatars.discourse-cdn.com/v4/letter/k/a698b9/32.png) [@kanke](https://discourse.nodered.org/u/kanke)\
**Post date:** [21 January 2020 17:25 UTC](https://discourse.nodered.org/t/bigtimer-questions/20692/1 "2020-01-21T17:25:20Z")

</div>

Bigtimer is kind of big monster and have tons of options, I didn't find a good documents for it. Some questions:

1. for dawn dusk night nightend, what exactly is the definition?
2. if repeat is check, it sends payload every minutes, can this customized to like 5 minutes?
3. what is the timeout value mean?

Thank you.

---

<div class="post-metadata">

**Author:** ![ghayne](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/ghayne/32/39_2.png) [@ghayne](https://discourse.nodered.org/u/ghayne)\
**Post date:** [21 January 2020 17:40 UTC](https://discourse.nodered.org/t/bigtimer-questions/20692/2 "2020-01-21T17:40:11Z")

</div>

A LOT of information here:

> **[BigTimer - Scargill's Tech Blog](https://tech.scargill.net/big-timer/)**
>
> Node–RED is a fantastic and powerful yet easy to use programming tool for wiring together hardware devices, APIs and online services in new and interesting ways. For more information on Node-Red go to the Node-Red site. BigTimer is the the most...

---

<div class="post-metadata">

**Author:** ![drmibell](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/drmibell/32/8424_2.png) [@drmibell](https://discourse.nodered.org/u/drmibell)\
**Post date:** [21 January 2020 18:04 UTC](https://discourse.nodered.org/t/bigtimer-questions/20692/3 "2020-01-21T18:04:33Z")

</div>

> [@kanke](#):
>
> for dawn dusk night nightend, what exactly is the definition?

I believe that `bigtimer` uses the [suncalc](https://github.com/mourner/suncalc) library. The definitions of twilight times that the library follows are described in a really nice [Wikipedia article](https://en.wikipedia.org/wiki/Twilight).

---

<div class="post-metadata">

**Author:** ![kanke](https://avatars.discourse-cdn.com/v4/letter/k/a698b9/32.png) [@kanke](https://discourse.nodered.org/u/kanke)\
**Post date:** [21 January 2020 18:49 UTC](https://discourse.nodered.org/t/bigtimer-questions/20692/4 "2020-01-21T18:49:21Z")

</div>

thanks, got do some reading 🙂