public String getExpiresIn() {
        return this.expiresIn;
    }
<p>
The length of time that you want a zonal shift to be active, which Route 53 ARC converts to an expiry time
(expiration time). Zonal shifts are temporary. You can set a zonal shift to be active initially for up to three
days (72 hours).
</p>
<p>
If you want to still keep traffic away from an Availability Zone, you can update the zonal shift and set a new
expiration. You can also cancel a zonal shift, before it expires, for example, if you're ready to restore traffic
to the Availability Zone.
</p>
<p>
To set a length of time for a zonal shift to be active, specify a whole number, and then one of the following,
with no space:
</p>
<ul>
<li>
<p>
<b>A lowercase letter m:</b> To specify that the value is in minutes.
</p>
</li>
<li>
<p>
<b>A lowercase letter h:</b> To specify that the value is in hours.
</p>
</li>
</ul>
<p>
For example: <code>20h</code> means the zonal shift expires in 20 hours. <code>120m</code> means the zonal shift
expires in 120 minutes (2 hours).
</p>

@return The length of time that you want a zonal shift to be active, which Route 53 ARC converts to an expiry
        time (expiration time). Zonal shifts are temporary. You can set a zonal shift to be active initially for
        up to three days (72 hours).</p>
        <p>
        If you want to still keep traffic away from an Availability Zone, you can update the zonal shift and set
        a new expiration. You can also cancel a zonal shift, before it expires, for example, if you're ready to
        restore traffic to the Availability Zone.
        </p>
        <p>
        To set a length of time for a zonal shift to be active, specify a whole number, and then one of the
        following, with no space:
        </p>
        <ul>
        <li>
        <p>
        <b>A lowercase letter m:</b> To specify that the value is in minutes.
        </p>
        </li>
        <li>
        <p>
        <b>A lowercase letter h:</b> To specify that the value is in hours.
        </p>
        </li>
        </ul>
        <p>
        For example: <code>20h</code> means the zonal shift expires in 20 hours. <code>120m</code> means the
        zonal shift expires in 120 minutes (2 hours).
aws-java-sdk-arczonalshift/src/main/java/com/amazonaws/services/arczonalshift/model/UpdateZonalShiftRequest.java