A report on Present and Specious present

The present is a moment in time discernible as intermediate between past and future.
A visualisation of the present (dark blue plane) and past and future light cones in 2D space.

The specious present is the time duration wherein one's perceptions are considered to be in the present.

- Specious present

The present may also be viewed as a duration (see specious present).

- Present
The present is a moment in time discernible as intermediate between past and future.

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The flow of sand in an hourglass can be used to measure the passage of time. It also concretely represents the present as being between the past and the future.

Time

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The flow of sand in an hourglass can be used to measure the passage of time. It also concretely represents the present as being between the past and the future.
Horizontal sundial in Taganrog
An old kitchen clock
A contemporary quartz watch, 2007
Chip-scale atomic clocks, such as this one unveiled in 2004, are expected to greatly improve GPS location.
Scale of time in Jain texts shown logarithmically
Time's mortal aspect is personified in this bronze statue by Charles van der Stappen.
Two-dimensional space depicted in three-dimensional spacetime. The past and future light cones are absolute, the "present" is a relative concept different for observers in relative motion.
Relativity of simultaneity: Event B is simultaneous with A in the green reference frame, but it occurred before in the blue frame, and occurs later in the red frame.
Views of spacetime along the world line of a rapidly accelerating observer in a relativistic universe. The events ("dots") that pass the two diagonal lines in the bottom half of the image (the past light cone of the observer in the origin) are the events visible to the observer.
Philosopher and psychologist William James

Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future.

The specious present refers to the time duration wherein one's perceptions are considered to be in the present.