Late Finish Time Formula

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Late Finish Time is the latest point in time when the scheduled activity can finish so as not to delay the project completion date or any constraint. Check FAQs
LFT=LST+dur
LFT - Late Finish Time?LST - Late Start Time?dur - Duration of Activity?

Late Finish Time Example

With values
With units
Only example

Here is how the Late Finish Time equation looks like with Values.

Here is how the Late Finish Time equation looks like with Units.

Here is how the Late Finish Time equation looks like.

57Edit=23Edit+34Edit
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Late Finish Time Solution

Follow our step by step solution on how to calculate Late Finish Time?

FIRST Step Consider the formula
LFT=LST+dur
Next Step Substitute values of Variables
LFT=23d+34d
Next Step Convert Units
LFT=2E+6s+2.9E+6s
Next Step Prepare to Evaluate
LFT=2E+6+2.9E+6
Next Step Evaluate
LFT=4924800s
LAST Step Convert to Output's Unit
LFT=57d

Late Finish Time Formula Elements

Variables
Late Finish Time
Late Finish Time is the latest point in time when the scheduled activity can finish so as not to delay the project completion date or any constraint.
Symbol: LFT
Measurement: TimeUnit: d
Note: Value should be greater than 0.
Late Start Time
Late Start Time is the latest point in time when the scheduled activity can begin so as not to delay the project completion date or any constraint.
Symbol: LST
Measurement: TimeUnit: d
Note: Value should be greater than 0.
Duration of Activity
Duration of activity is the total number of work periods required to accomplish the work of the activity.
Symbol: dur
Measurement: TimeUnit: d
Note: Value should be greater than 0.

Other formulas in Time Estimation category

​Go Early Finish Time
EFT=EST+S
​Go Expected Waiting Time for Customers in Queue
Wq=λaµ(µ-λa)
​Go Expected Waiting Time for Customers in System
Ws=1µ-λa
​Go Free Float
FF0=EFT-EST-tactivity

How to Evaluate Late Finish Time?

Late Finish Time evaluator uses Late Finish Time = Late Start Time+Duration of Activity to evaluate the Late Finish Time, Late Finish Time is the latest point in time when the scheduled activity can finish so as not to delay the project completion date or any constraint. Late Finish Time is denoted by LFT symbol.

How to evaluate Late Finish Time using this online evaluator? To use this online evaluator for Late Finish Time, enter Late Start Time (LST) & Duration of Activity (dur) and hit the calculate button.

FAQs on Late Finish Time

What is the formula to find Late Finish Time?
The formula of Late Finish Time is expressed as Late Finish Time = Late Start Time+Duration of Activity. Here is an example- 0.000509 = 1987200+2937600.
How to calculate Late Finish Time?
With Late Start Time (LST) & Duration of Activity (dur) we can find Late Finish Time using the formula - Late Finish Time = Late Start Time+Duration of Activity.
Can the Late Finish Time be negative?
No, the Late Finish Time, measured in Time cannot be negative.
Which unit is used to measure Late Finish Time?
Late Finish Time is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Late Finish Time can be measured.
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