The time it takes for alterations depends on several factors, including the complexity of the alteration, the availability of the tailor or seamstress, and the current workload of the alteration shop. Simple alterations such as hemming pants or shortening sleeves can often be done within a few hours or even while you wait, depending on the shop's policies.

However, more complex alterations or those involving intricate details may require additional time. It's common for alteration shops to provide estimated completion times based on their workload and the specific alteration requested. This can range from a few days to a couple of weeks, depending on the shop's capacity and the nature of the alteration.

When you bring your items for alterations, it's best to inquire 24 Hours Alterations Services about the estimated completion time directly with the tailor or seamstress. They can provide you with a more accurate timeline based on their workload and the specific alterations needed.

Additionally, if you have a specific deadline or event for which you need the altered item, be sure to communicate this to the alteration shop. They may be able to accommodate your request and expedite the process if necessary, although this may come with an additional fee.

Ultimately, it's recommended to plan ahead and give yourself enough time for alterations to ensure a satisfactory outcome and avoid any last-minute rush.