Interphase

Calling it so would be misleading since a cell in interphase is very busy synthesizing proteins, transcribing DNA into RNA, engulfing extracellular material, and processing signals, to name just a few activities.

DNA double-strand breaks can be repaired during interphase by two principal processes.

When G2 is completed, the cell enters a relatively brief period of nuclear and cellular division, composed of mitosis and cytokinesis, respectively.

After the successful completion of mitosis and cytokinesis, both resulting daughter cells re-enter G1 of interphase.

In the cell cycle, interphase is preceded by telophase and cytokinesis of the M phase.

An illustration of interphase. The chromatin has not yet condensed, and the cell is undergoing its normal functions.
An image of the nucleus of a cell ( HT1080 ) currently in interphase (likely G1). Note: Cytoplasm of this cell or the neighboring cell is not visible (top-left), which is currently in the telophase of mitosis . Image taken using an optical microscope and DAPI staining of DNA.