Hi @libbyexplores welcome to TrustedHousesitters and to our community forum as @Smiley and @Petermac who are both really experienced sitter members say, there is no hard and fast rule.
There is a process for owners to go through as well, they receive applications and may wait a period before responding after which they will contact the sitters who they feel would be right for them and their pets and open communications via the secure account messaging system, set up video calls etc. Once all of this is completed and both parties are 100% happy with the arrangements and agree, they will confirm the sit.
As Peter says depending on their lead time, last minute and urgent sits will happen far quicker.
I’ve taken a look at your profile and it’s great I would advise adding another couple of references and also some pictures with pets, when surveyed owners always respond with favoring profiles that actively show sitters with pets, after all that is the main reason they come to TrustedHousesitters.
Applying for local and last minute, where possible, is the best way to get started, where have you been applying for sits and are you looking for city or country?
Feel free to ask your questions here, we do have an incredibly helpful and supportive community … welcome and thank you for being part of it, we cannot wait to share in your journey.
Angela & the Team