Introduction
Overview
Tutorials
Overview Karaoke Timing Tutorial Inline effects Tutorial Furigana Tutorial
Working with Subs
Editing Subtitles Exporting Subtitles Applying Subtitles Spell Checker Translation Assistant Paste Over Select Lines
Typesetting
Typesetting Introduction Working with Video Editing styles Visual Typesetting ASS Override Tags Colour Picker Styling Assistant Resolution Resampler Fonts Collector
Timing
Working with Audio Timing subtitles to audio Shift times Timing Post-Processor Kanji Timer
Automation
Automation Overview
Karaoke Templater
Overview Declaring templates Execution order Modifiers Inline-variables ($-variables) Code lines and blocks Execution envirionment
Automation Tutorials
Overview A simple example Using math expressions
Lua Reference
Overview Registration Subtitles object Progress reporting Dialogs Misc. APIs
Lua Modules
Overview karaskel_lua utils.lua unicode.lua cleantags.lua clipboard re
Automation Manager
Automation Manager Running macros Standard macros History of Automation
Miscellaneous
Aegisub Options Autosave Path Specifiers Script Properties Script Resolution Attachment Manager Commands

Shift times

shift times tool is a batch processor for timestamps; it adjusts the start/end timestamps of many subtitle lines at once in various ways. It is located under Timing -> Shift Times.

It looks like this:

shift_times

The left part of the window contain the options.

Shift by

These controls decide in which direction and by how much each timestamp will be modified.

Time
How much you want to adjust each timestamp, in hours:minutes:seconds.centiseconds.
Frames
If you have video loaded, you can specify the adjustment time as a number of frames instead. Note that shifting by zero frames will snap the timestamps to the frame times without doing any shifting.
Forward or Backward
Controls in which direction the timestamps are adjusted.

Affect

These controls decide what lines will be processed.

All rows
Applies the time shifting to all lines in the script.
Selected rows
Applies the time shifting only to the selected lines.
Selection onward
Applies the time shifting to the first selected line and all lines below it (in the grid).

Times

These controls decide what timestamps will be processed.

Start and End times
Both start and end times of the affected lines will be modified by the given amount.
Start times only
Only the start times of the affected lines will be modified. Note that this makes the lines longer (if you shift backwards) or shorter (if you shift forwards) and can even make them have a duration of zero.
End times only
Only the end times of the affected lines will be modified. Note that this makes the lines longer (if you shift forwards) or shorter (if you shift backwards) and can even make them have a duration of zero.

Note that if a line is shifted so that its start or end time stamp would be negative, that timestamp is zeroed instead. This can be used to clear all timings from an entire script, by shifting backwards by longer than the latest timestamp in the script.

Load from history

This is a history of all time shiftings you have done since last time you cleared the shift history (with the clear button). The format is a number of fields separated by commas. The fields are:

  • Filename of the script (e.g. “example.ass”)
  • Shift amount and direction (e.g. “0:00:05.00 forward”)
  • What times were affected, “s” for start, “e” for end, “s+e” for both What rows were affected; “sel start-end” for selections, “all” for all rows (e.g. “sel 1-40”)

To load the settings from a history entry simply double-click it.

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Timing Post-Processor →