This is really up to you. You can find volunteering opportunities that only take one hour per month to five days a week or more.
Some roles are for one-off events, some are short term and others might need a six month commitment.
You can volunteer at any time of the week, day or night. While much volunteering takes place in office hours, you can volunteer at evenings and weekends too, again depending on what you want to do.
Some organisations ask for a particular commitment from their volunteers, while others are able to take a more flexible approach. Certain roles like befriending require building up trust with someone which is why a certain amount of commitment is required. Think carefully about the amount of commitment you are able to give before choosing your role.
Our search facility helps narrow down the opportunities that suit your life.