TDB

TDB or TdB is an abbreviation for:

• Postage Stamp Day , an international day of action
• Barycentric Dynamic Time (from French Temps Dynamique Barycentrique , English Barycentric Dynamical Time), an astronomical time system
• Trivial Database , a database system, see DBM (database)

This is a disambiguation page for differentiating between several terms identified with the same word.