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Earliest Finish Time Formula

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Earliest Finish Time is the time of an activity that occurs if the activity starts at the earliest start time and takes an estimated time t to complete the activity. Check FAQs
EFT=LFT-TF0
EFT - Earliest Finish Time?LFT - Latest Finish Time?TF0 - Total Float?

Earliest Finish Time Example

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With units
Only example

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

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

Here is how the Earliest Finish Time equation looks like.

26Edit=50Edit-24Edit
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Earliest Finish Time Solution

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

FIRST Step Consider the formula
EFT=LFT-TF0
Next Step Substitute values of Variables
∴ EFT=50d-24d
Next Step Convert Units
∴ EFT=4.3E+6s-2.1E+6s
Next Step Prepare to Evaluate
∴ EFT=4.3E+6-2.1E+6
Next Step Evaluate
∴EFT=2246400s
LAST Step Convert to Output's Unit
∴EFT=26d

Earliest Finish Time Formula Elements

Variables
Earliest Finish Time
Earliest Finish Time is the time of an activity that occurs if the activity starts at the earliest start time and takes an estimated time t to complete the activity.
Symbol: EFT
Measurement: TimeUnit: d
Note: Value should be greater than 0.
Formulas to find Earliest Finish TimeOpen Variable
Latest Finish Time
Latest Finish Time is the latest time at which the activity can be completed without delaying the project.
Symbol: LFT
Measurement: TimeUnit: d
Note: Value can be positive or negative.
Formulas to find Latest Finish TimeOpen Variable
Total Float
Total float is the period by which an activity can shift its timing without affecting the relevant schedule completion date.
Symbol: TF0
Measurement: TimeUnit: d
Note: Value can be positive or negative.
Formulas to find Total FloatOpen Variable

Other formulas in Critical Path Method category

​Go Total Float in CPM
TF0=LFT-EFT
​Go Free Float used in CPM
FF0=TF0-S
​Go Independent Float used in CPM
IF0=FF0-S
​Go Interfering Float
IF=TF0-FF0

How to Evaluate Earliest Finish Time?

Earliest Finish Time evaluator uses Earliest Finish Time = Latest Finish Time-Total Float to evaluate the Earliest Finish Time, The Earliest Finish Time formula is defined as the earliest possible time a task or activity can be completed, considering its dependencies and constraints. Earliest Finish Time is denoted by EFT symbol.

How to evaluate Earliest Finish Time using this online evaluator? To use this online evaluator for Earliest Finish Time, enter Latest Finish Time (LFT) & Total Float (TF0) and hit the calculate button.

FAQs on Earliest Finish Time

What is the formula to find Earliest Finish Time?
The formula of Earliest Finish Time is expressed as Earliest Finish Time = Latest Finish Time-Total Float. Here is an example- 0.000301 = 4320000-2073600.
How to calculate Earliest Finish Time?
With Latest Finish Time (LFT) & Total Float (TF0) we can find Earliest Finish Time using the formula - Earliest Finish Time = Latest Finish Time-Total Float.
Can the Earliest Finish Time be negative?
No, the Earliest Finish Time, measured in Time cannot be negative.
Which unit is used to measure Earliest Finish Time?
Earliest Finish Time is usually measured using the Day[d] for Time. Second[d], Millisecond[d], Microsecond[d] are the few other units in which Earliest Finish Time can be measured.
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