[[!img tor.png link="no" class="svg" alt="A Tor connection goes through 3 relays with the last one establishing the actual connection to the final destination"]]
<p>Because Tor routes your Internet traffic through 3 relays before reaching its destination, the connection is slower than when you are not using Tor.</p>
Tails learns the current time by connecting to the captive portal detection service of [Fedora](https://getfedora.org/), which is used by most Linux distributions. This connection does not go through the Tor network and is an exception to our policy of only making Internet connections through the Tor network.
<p>You can learn more about our security assessment of this time synchronization in our [[design documentation about non-Tor traffic|contribute/design/Tor_enforcement#non-tor-traffic]].</p>
If Tails fails to synchronize the clock because you have to sign in to the network using a captive portal, an error screen is displayed that helps you do so.
<p>Tails uses the [[default <i>obfs4</i> bridges from <i>Tor Browser</i>|https://gitlab.torproject.org/tpo/applications/tor-browser-build/-/blob/main/projects/tor-expert-bundle/pt_config.json?ref_type=heads]].</p>
To save the last Tor bridge that connected to Tor successfully, turn on the [[Tor Bridge|persistent_storage/configure#bridge]] feature of the Persistent Storage.
<ul> <li>Allowing you to request a bridge from Tails by solving a CAPTCHA. ([[!tails_ticket 15331]])</li> <li>Supporting <i>snowflake</i> bridges. ([[!tails_ticket 5494]])</li> </ul>
