ISSUE-293: Specify date as well as hours, minutes and seconds in time expressions

ebu:dates

Specify date as well as hours, minutes and seconds in time expressions

State:
OPEN
Product:
TTML2
Raised by:
Nigel Megitt
Opened on:
2013-10-31
Description:
Proposal from EBU to permit date to be specified in time expressions, optionally. Purpose of this is to allow 24 hour clock times to be used without ambiguity at midnight crossing. Also to permit second-accurate duration calculations by allowing externally managed reference of dates that include leap seconds.

An implementation may usefully allow dates to be inferred or inherited from a reference element rather than requiring the same date on every begin and end attribute where date semantics are needed.
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Related emails:
  1. ISSUE-293 (ebu:dates): Specify date as well as hours, minutes and seconds in time expressions [TTML2] (from sysbot+tracker@w3.org on 2013-10-31)

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David Singer <singer@apple.com>, Nigel Megitt <nigel.megitt@bbc.co.uk>, Chairs, Thierry Michel <tmichel@w3.org>, Philippe Le H├ęgaret <plh@w3.org>, Staff Contacts
Tracker: documentation, (configuration for this group), originally developed by Dean Jackson, is developed and maintained by the Systems Team <w3t-sys@w3.org>.
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