Most music service providers publish content within 48 hours of successfully receiving assets. Keep in mind that 48 hours is a general guideline and that each music service provider's processing time will vary. For example, it can take up to 10 business days for Apple to process content due to their QC process.
NOTE: Always check your product's condition and status in Central to ensure that it has made it to a 'released' state. If a product is not 'released,’ it hasn't been distributed to a music service provider.