Summon SLA casting time

[Biggus]

When creatures such as demons use their summon SLA, does it take a standard action or 1 round?


A spell-like ability takes the same amount of time to complete as the spell that it mimics (usually 1 standard action) unless otherwise stated.


A creature with the summon ability can summon specific other creatures of its kind much as though casting a summon monster spell

[Bullet06320]

https://www.d20srd.org/srd/spells/summonMonsterI.htm

summon monster is 1 round casting time

that would be the basis for most summoning sla's unless it mimics another specific spell, or the specific sla said otherwise

[Biggus]

I know Summon Monster is one round, that's why I'm asking. The problem is, the summon special ability doesn't directly mimic a spell, it just says it works "much as though casting a summon monster spell" which doesn't make it clear whether that includes casting time.

[Darg]

All activated/cast extraordinary or supernatural abilities take a standard action unless specified in their description regardless of the spell they mimic (if they mimic a spell). Spell-like abilities that mimic a spell use the cast time of the original spell instead (invocations are the exception); otherwise they are a standard action. So yes, that specific summon SLA has a full round cast time.

[Psyren]

It's one round:


Summon

A creature with the summon ability can summon specific other creatures of its kind much as though casting a summon monster spell, but it usually has only a limited chance of success (as specified in the creature’s entry).

The "much as though" tells you it works like summon monster but with some differences, and the "but" tells you what those differences are (limited to your kind, failure chance). But you start from Summon Monster as the base for this ability.