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# Restore to a Time

To restore your index to a particular time, you can send a `DREINITIAL` index action (case sensitive), and set the `RestoreTime` parameter.

    http://IDOLhost:indexPort/DREINITIAL?RestoreTime=Time

where:

`IDOLhost` | is the IP address or host name of the machine on which IDOL Server is installed.
`indexPort` | is the IDOL Server index port (specified by the `IndexPort` parameter in the `[Server]` section of the IDOL Server configuration file).
`Time` | is the time that you want to restore to. For a list of available time and date formats, see Date formats . Note: If you use a format that contains a space (such as a date and time), you must percent-encode the parameter value. IDOL Server processes date and time values according to the timezone of the server. To avoid confusion or inconsistent results, HPE recommends that you use the epoch seconds format where possible. The `GetBackupData` action returns the available backup times in epoch seconds, and the `IndexerGetStatus` action returns the times for index jobs in epoch seconds if you set `EpochTime` to `True`, so that you can find the time that you want to restore to.

When you restore to a time, IDOL Server:

- restores to the latest backup from before the specified time.

- runs any archived index actions from between the backup time and the specified restore time. If you have not configured an `ArchivePath`, the index remains in the backup state.

To find out which backup file IDOL Server would use to back up to a particular time, use the `GetBackupData` action, with the `GetBackupForRestoreTime` parameter. See Return a List of Backup Files.

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