A report on Time and Present

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

- Time

The present (or here and now) is the time that is associated with the events perceived directly and in the first time, not as a recollection (perceived more than once) or a speculation (predicted, hypothesis, uncertain).

- Present
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.

3 related topics with Alpha

Overall
The Ghost of Christmas Yet to Come shows Scrooge his future in Dickens' A Christmas Carol.

Future

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The Ghost of Christmas Yet to Come shows Scrooge his future in Dickens' A Christmas Carol.
A visualization of the future light cone (at the top), the present, and the past light cone in 2D space.
Project of an orbital colony Stanford torus, painted by Donald E. Davis
Print (c. 1902) by Albert Robida showing a futuristic view of air travel over Paris in the year 2000 as people leave the opera.

The future is the time after the past and present.

Everything is in the Past (Vassily Maximov, 1889).

Past

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Set of all events that occurred before a given point in time.

Set of all events that occurred before a given point in time.

Everything is in the Past (Vassily Maximov, 1889).
Thoughts of the Past (John Roddam Spencer Stanhope, 1859)

The past is contrasted with and defined by the present and the future.

The concept of the past is derived from the linear fashion in which human observers experience time, and is accessed through memory and recollection.

Specious present

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