How long does it take to unstake ETH?

Could you please elaborate on the time frame involved in the process of unstaking Ethereum (ETH)? I'm interested in understanding the estimated duration it takes for the unstaking to complete, as well as any factors that might influence this timeline. Is it a matter of minutes, hours, days, or longer? Additionally, are there any specific steps or procedures that need to be followed during the unstaking process? Your insights would be greatly appreciated.