Vartamana-kshana

Vartamana-kshana (वर्तमान-क्षण) means “the present moment” or “the current instant.” It is a concept in Buddhist and Vaisheshika temporal theory referring to the smallest unit of time that constitutes the experienced present.

Overview

In Buddhist philosophy, time is analyzed into kshanas (moments) — the shortest possible duration of existence. The present moment (vartamana-kshana) is the instant in which experience occurs, sandwiched between the just-past (atita-kshana) and the about-to-come (anagata-kshana). Each moment is a complete arising and passing away of a set of dharmas (phenomena).

Philosophical Context

The concept of vartamana-kshana is central to the Buddhist doctrine of anitya (impermanence). If reality is composed of momentary dharmas, then nothing persists from one moment to the next — change is instantaneous and total. This leads to the doctrine of kshanabhangavada (momentariness), which argues that every dharma exists for only one kshana before ceasing. The Vaisheshika school also analyzes time into kshanas but treats time (kala) as a permanent category that is distinct from the changing events it measures.

Interpretations

Dignaga and Dharmakirti hold that the present moment is the only time that is directly perceived (pratyaksha), while past and future are known through inference (anumana). The Yogachara school argues that even the present moment is constructed by consciousness. The Nyaya school rejects strict momentariness, arguing that substances persist through time with changing qualities. In modern physics, the concept has been compared to the “specious present” in phenomenology and the Planck time in quantum mechanics.

Verification Notes

• Buddhist analysis in Abhidharmakosha of Vasubandhu.
• Vaisheshika treatment in Vaisheshika Sutras 7.1.20–22.
• Audited against Encyclopedia of Indian Philosophies and Wikipedia (September 2026).