| Name | Function | Packages Needed |
| apply_bary | apply barycentric corrections to photon arrival times | xray:xtiming:timcor |
| calc_bary | compute barycentric corrections to photon arrival times | xray:xtiming:timcor |
| chiplot | plot chisquared as a function of period | xray:xtiming |
| fft | fast fourier transform period search | xray:xtiming |
| fftplot | plot the Fourier coefficients | xray:xtiming |
| fldplot | plot the folded light curve | xray:xtiming |
| fold | make a folded light curve | xray:xtiming |
| ftpplot | plot the distribution of Fourier coefficients | xray:xtiming |
| ksplot | plots result of K-S variability test | xray:xtiming |
| ltcplot | plot the light curve | xray:xtiming |
| ltcurv | makes table of counts vs. time | xray:xtiming |
| period | period search by folding | xray:xtiming |
| qpphase | calculate photon phase for assumed period | xray:xtiming |
| timfilter | list start and stop times of good data intervals | xray:xtiming |
| timplot | plot light curves or other tabular information | xray:xtiming |
| timprint | list tables on screen | xray:xtiming |
| timsort | extraction of time sorted event | xray:xtiming |
| vartst | variability test | xray:xtiming |