A chronological CV lists your work experience in reverse order, most recent first. It is the most widely used and most widely accepted CV format across industries and countries. Hiring managers and recruiters expect it; applicant tracking systems are built to parse it. It tells your career story in the most legible possible way. The timeline CV takes the same reverse-chronological structure and adds a visual vertical timeline element that makes the progression and duration of each role immediately visible. The content structure is identical to a standard chronological CV; only the visual presentation differs.
Several ways, depending on the type of progression. For promotions within the same company, list each role title separately under the same employer with its own dates and bullet points. For scope growth across different companies, the increases in team size, budget, and seniority level tell the story. For lateral moves into a new sector or function, a brief sentence in your profile explaining the thread helps. The goal is to make a hiring manager feel, after reading your CV, that each move was logical and deliberate, even if at the time it felt uncertain or opportunistic.
If a role lasted fewer than 6 months and is not the most recent or the most relevant, it is usually fine to omit it, particularly if it was a probationary period, a role that ended during a redundancy round, or one you left for a clearly better opportunity. However, if omitting it would create a gap that looks unexplained, the omission draws more attention than the short tenure would. For contract or freelance roles, label them clearly: "Freelance Consultant, Jan 2023 to Jun 2023" is read very differently from an unexplained 6-month gap.
Neither is intrinsically better; context and pattern matter. Three years in one company with two promotions reads as a strong trajectory. Seven years in one company with no visible growth in scope reads as stagnation. Three companies in 8 years, each with clear scope increases, reads as deliberate development. Three companies in 2 years, all at the same level, raises questions. The CV question is whether your career shows direction, growth, and increasing impact over time. A timeline layout makes this pattern visible at a glance, which is why it is particularly well-suited to professionals with a clear upward trajectory to show.
The practical answer is 10 to 15 years in full detail. Earlier roles can be compressed into a brief "Earlier career" section listing employer, title, and years, or omitted entirely if they are not relevant to where you are now. For a mid-career professional with 12 years of experience, the first 2 or 3 years might merit a single line or a compressed section rather than full bullet points. The exception is if early career experience is directly relevant to the current application, in which case it deserves more space regardless of how long ago it was.