{{Rsnum
|rsid=12649507
|Gene=CLOCK
|Chromosome=4
|position=55514317
|Orientation=plus
|GMAF=0.3613
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene_s=CLOCK
}}{{ population diversity
| geno1=(A;A)
| geno2=(A;G)
| geno3=(G;G)
| CEU | 11.5 | 43.4 | 45.1
| HCB | 38.0 | 45.3 | 16.8
| JPT | 31.9 | 53.1 | 15.0
| YRI | 2.8 | 27.6 | 69.7
| ASW | 0.0 | 37.5 | 62.5
| CHB | 38.0 | 45.3 | 16.8
| CHD | 41.7 | 44.4 | 13.9
| GIH | 16.8 | 48.5 | 34.7
| LWK | 1.8 | 20.2 | 78.0
| MEX | 17.2 | 39.7 | 43.1
| MKK | 2.6 | 37.2 | 60.3
| TSI | 11.8 | 42.2 | 46.1
| HapMapRevision=28
}}{{PMID Auto
|PMID=20149345
|Title=CLOCK Gene Variants Associate with Sleep Duration in Two Independent Populations
}}

{{on chip | 23andMe v3}}
{{on chip | 23andMe v4}}
{{on chip | Affy GenomeWide 6}}
{{on chip | FTDNA2}}
{{on chip | HumanOmni1Quad}}
{{on chip | Illumina Human 1M}}