The time it takes for a transaction involving ETN coin (Electroneum) to be completed can vary depending on several factors.

Firstly, the speed of the transaction can be influenced by the current network congestion. If there are many transactions being processed at the same time, it may take longer for your transaction to be confirmed.

Secondly, the transaction fee you choose to include can also affect the speed of the transaction. Higher transaction fees typically result in faster processing times, as miners are more incentivized to include your transaction in the next block.

Additionally, the processing time can also be impacted by the wallet or exchange you are using to send or receive the ETN coin. Some platforms may have their own processing times or may require additional verification steps before the transaction can be completed.

In general, ETN coin transactions are designed to be fast and efficient, with an average confirmation time of around 2 minutes. However, in some cases, it may take longer depending on the factors mentioned above.

Overall, if you are looking to make a quick transaction with ETN coin, it is recommended to choose a higher transaction fee and ensure that the network is not too congested at the time of the transaction.