Abstract It has been widely reported by the parents of the ADHD children that the latter experience a poor sense of time in their behaviors. Therefore this study paper seeks to find out the sense of time in children with attention deficit hyperactivity disorder (ADHD). the study that was carried out found out that many children are affected by attention deficit hyperactivity disorder in their sense of time and therefore this matter should never be taken for granted. It is advisable that parents should spend most of their time with their children in order to establish if they are free from this disorder. It is also important that children who suffer from ADHD should be taken to a psychiatrist in order to manage this disorder. Introduction Undoubtedly, attention-deficit hyperactivity disorder (ADHD) is the most common disorder found in children and adolescent and it is believed that it affects 5-10% of the children all over the world (Willcut, Doyle, Nigg, Faraone & Pennington 2005). This disorder is characterized by hyperactivity pervasive, impulsivity and lack of proper attention. ADHD is a complicated disorder since it is caused by several factors and also the disorder exhibits many clinical conditions. According to the DSM-IV-R (American Psychiatric Association, 2000), it elaborates that there are three sub types of ADHD namely predominantly inattentive, predominantly hyperactive-impulsive and combined inattentive and hyperactive-impulsive. However, it has been established by various authors (Amador-Campos, Forns-Santacana, Guardia-Olmos & Pero-Cebollero, 2006; Baldwin, Flake, Meaux, Chelonis, J.J., Edwards, M.C., Field, C.R. et al. 2004) that there are other individual differences which cause ADHD other than the symptoms mentioned above. Literature review It is known that ADHD is mainly diagnosed in school going children even though it emerges in the years before the children go to school. However other studies based on community sample have revealed that the problem in behavior which is experienced in early life will likely to be linked to future difficulties in behavior. On the contrary few studies have highlighted the frequency with which children under the age of five years meet the criteria for ADHD (Barkley, 1990; Barkley 1997; Barkley, Koplowitz, Anderson & McMurray, 1997). Generally, the studies mentioned above found out that approximately half of the young preschool children and almost three quarter of the older preschool children had behavior problem associated to ADHD with the range of age being assessed lying between 2-10 years (Harvey, Youngworth, Thaka &Errazariz, 2009). In Barkley’s (1997) unifying theory, he examines that impairment to sense of time is one of the major difficulties presented to children with ADHD. He goes further by postulating that the primary deficiency in response led to secondary deficiencies. According to his theory, a working memory deficit leads to lack of proper attention and hinders the development of sense of time in ADHD children. The children are influenced by the recent activities while they tend to forget the activities which happened long ago. Levine & Spivack (1959) reported that in a group of restless and emotionally disturbed boys there is conception of time constr