Update 12/17/25:
To avoid the Shibboleth stale login error and for quicker login to Timekeeping UKG, use Apple Face ID:
- Confirm Face ID is set up on your device by going to Settings > Face ID & Passcode. Make sure Face ID is enabled and your face is enrolled.
- Open the UKG Timekeeping App on your iPhone.
- Log In with your access.caltech credentials.
- Tap the Menu (☰) or Profile icon and select Settings.
- Find the option for Biometric Login or Face ID.
- Toggle it ON and grant permission
- When prompted, allow UKG to use Face ID and confirm through the iOS pop-up.
From: Payroll Services
Effective Monday, December 1, 2025, Timekeeping (Kronos) and Kronos Limited will be replaced with Timekeeping (UKG). The new link will be available on access.caltech.edu on Monday, December 1, 2025.
In addition to an updated online experience, Timekeeping (UKG) offers exciting new features:
- Online time off requests
- Mobile access (for eligible departments/divisions)
- Timestamps for punching in
- Enhanced security with Duo multi-factor authentication
The Payroll Team provides basic tutorials that show employees how to login, record time, request time off and review and approve their timecards. Payroll encourages you to work with your manager or supervisor for any specific rules in your department.
For more information, visit the Payroll Services website.
Timekeeping UKG Guides
- Caltech Timekeeping Quick Guide
- Caltech Timekeeping Mobile App Guide
- FAQs
- Caltech Time Clocks - Map
- Shibboleth stale login request error
- Caltech Timekeeping UKG Video Tutorials
Contact Information
Technical Issues: [email protected]
Paycheck Inquiries: [email protected]
Edits for previous pay period: Contact your supervisor or payroll activity monitor (PAM)