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TIME 2021 : International Symposium on Temporal Representation and Reasoning


Conference Series : International Symposium on Temporal Representation and Reasoning
When Sep 27, 2021 - Sep 29, 2021
Where Klagefurt
Submission Deadline May 24, 2021
Notification Due Jun 23, 2021
Final Version Due Jul 7, 2021
Categories    time in ai   time in db   time in theoretical cs   time and covid-19

Call For Papers


****** 28th International Symposium on Temporal Representation and Reasoning ******

Klagenfurt, Austria, 27-29 September 2021,



- Since 1994, the TIME International Symposium on Temporal Representation and Reasoning aims to bring together researchers in the area of temporal representation and reasoning in different areas of Computer Science and related disciplines.

- TIME 2021 will be organized as a combination of technical paper presentations, keynote talks, and tutorials.
Besides sustaining the traditional three tracks (Time in Artifical Intelligence, Temporal Databases, and Temporal Logic and Reasoning) TIME 2021 in particular wants to stimulate cross cutting concerns.

- TIME 2021 will be a hybrid conference. We are planning to have virtual participation for delegates and online presentations. We will also try to allow also an in-presence participation, according to the rapidly evolving pandemic situation.


- Time in Artificial Intelligence
- Temporal Databases
- Temporal Logic and Reasoning


- Temporal representation and reasoning for Covid-19
we are looking for submissions dealing with temporal issues in any context having to manage Covid-19 pandemic (healthcare, medicine, social contexts, school, and so on)
- Temporal explainability: connecting symbolic and sub-symbolic temporalities
we are looking for submissions dealing with some kind of temporal logics/system/rules/visualization for interpreting/explaining the results of machine learning algorithms considering temporally relevant problems.


As in recent years, we plan to invite authors of selected papers to submit an extended version of their contribution to a special issue of the journal Information and Computation (to be confirmed) and in addition selected papers of the special track will be invited to a special issue on Temporal representation and reasoning for Covid-19 in the journal Artificial Intelligence in Medicine.


TIME 2021 accepts submissions in PDF format, no longer than 12 pages excluding references and appendix. The appendix is limited to 5 pages, and the reviewers may or may not take it into account for their recommendation. Submissions must be formatted following the LIPIcs instructions (, and preferably redacted in LaTex. All submissions have to be made electronically via easychair at (details at

Important Dates

- Papers and abstract due: May 24, 2021
- Notification: June 23, 2021
- Final camera-ready version: July 7, 2021
- Conference: September 27-29, 2021
TIME policy is single-blind, so the names of the authors need not be hidden in the submitted draft. Members of the program committee, excluding the PC chairs, are allowed to submit papers. Submitted papers will be refereed for quality, correctness, originality, and relevance to the conference.

Submissions to TIME 2021 must be original, parallel submissions of the same material to other conferences or journals are not allowed. Accepted papers will be presented at the symposium and included in the proceedings, which will be published by LIPIcs-Leibniz International Proceedings in Informatics (, a series of high-quality peer-reviewed conference proceedings which are published according to the principle of OpenAccess. At least one author of each accepted paper must register at the conference and present either virtually or (if possible) in person. In-person participation in the symposium will not be a prerequisite for publication.

List of Topics

- Topics for TIME 2021 include (but are not limited to):
• Spatial and temporal reasoning
• Temporal data models and query languages
• Time in natural language processing
• Temporal data mining
• Temporal constraints: representation and reasoning
• Time series data management
• Spatio-temporal knowledge representation systems
• Data currency and expiration
• Reasoning about actions and change
• Planning and planning languages
• Ontologies of time and space-time
• Belief and uncertainty in temporal knowledge
• Temporal learning and discovery
• Temporal query processing and indexing
• Stream data management
• Spatio-temporal data management, including moving objects
• Indeterminate and imprecise temporal data
• Specification and verification of temporal properties
• Model checking algorithms and implementations
• Temporal aspects of agent- and policy-based systems
• Temporal aspects of service level agreements
• Temporal aspects of business process modeling and management


Steering Committee
• Alexander Artikis, NCSR "Demokritos", Athens, Greece
• Patricia Bouyer, CNRS and ENS Paris-Saclay, Cachan Cedex, France
• Carlo Combi, University of Verona, Italy
• Johann Eder, University of Klagenfurt, Austria
• Thomas Guyet, IRISA, Rennes, France
• Luke Hunsberger, Vassar College, USA
• Martin Lange, University of Kassel, Germany
• Angelo Montanari, University of Udine, Italy (chair)
• Shankara Narayanan Krishna (Krishna S.), IIT Bombay, India
• Mark Reynolds, University of Western Australia, Australia

Program Committee Chairs
• Carlo Combi (University of Verona, Italy)
• Johann Eder (University of Klagenfurt, Austria)
• Mark Reynolds (University of Western Australia, Perth, Australia)

Local Organization:
• Johann Eder (University of Klagenfurt, Austria)
• Marco Franceschetti (University of Klagenfurt, Austria)


The conference will be held at the University of Klagenfurt, Austria (

Klagenfurt, the conference venue, is located in Austria’s southernmost region of Carinthia which is near the borders with Italy and Slovenia.

Contact: All questions about submissions etc. should be emailed to

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