How long does it take to rank up from O 1 to O 2?

10 U.S. Code § 619: The minimum time-in-grade (TIG) requirements for promotion of officers on the active-duty list (ADL) are as follows: O1: 18 months. O2: 2 years. O3 through O5: 3 years.

What percentage of army officers make Colonel?

2 percent

Colonel	2 percent
Lieutenant colonel	8 percent
Major	16 percent
Captain	39 percent
First lieutenant and second lieutenant (when combined with the number authorized for general officer grades under section 12004 of this title)	35 percent.

How long does it take to go from major to Lt colonel?

DOPMA guidelines suggest that 70 percent of majors be promoted to lieutenant colonel after serving at least three years at their present rank and after 15–17 years of cumulative commissioned service.

How long does it take to get promoted from 2nd LT to 1st Lt?

18 months
A second lieutenant (grade O-1) is usually promoted to first lieutenant (grade O-2) after 18 months in the Army or 24 months in the Marine Corps and Air Force.

How long can a lieutenant colonel stay in the military?

By law, Regular Officers promoted to lieutenant colonel (O-5) may serve for 28 active commissioned years, while those promoted to colonel (O-6) may stay for 30 active commissioned years unless earlier retired by other provisions of law.

How long do you have to be a commissioned officer to retire?

Bottom Line Up Front (BLUF): To retire from active duty as a commissioned officer, you must have 20 years of active duty service, with at least 10 of those years of service as a commissioned officer (the Secretary of the branch of service may waive this requirement to 8 years of service as a commissioned officer).

What percentage of 2nd Lieutenants get promoted to colonel?

Half of the Lieutenant Colonels (6\% of the total) are promoted “naturally” to Colonel by age 45; the remainder, at the end of their careers. Half of the Age-45 Colonels are promoted to General (3\% of the Second Lieutenants). The remainder retire as Colonels (and do NOT receive a “final” promotion). Of course we know that there is a pyramid.

How long does it take to become a USMC commissioned officer?

As you can see, members must have 20 years of active duty service, with at least 10 years of active service as a commissioned officer.